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Finding the Fourth Proportional to 9,019,905.10, 13,529,857.65 and 9,019,905.10

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Solution

The fourth proportional to 9,019,905.10, 13,529,857.65 and 9,019,905.10 is: 13,529,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,019,905.10 : 13,529,857.65 = 9,019,905.10 : x
  2. Step 2: Convert to fraction form
    9,019,905.10/13,529,857.65 = 9,019,905.10/x
  3. Step 3: Cross multiply
    9,019,905.10x = 13,529,857.65 × 9,019,905.10
  4. Step 4: Simplify right side
    9,019,905.10x = 122,038,032,019,509.02
  5. Step 5: Solve for x
    x = 122,038,032,019,509.02/9,019,905.10
  6. Step 6: Final answer
    x = 13,529,857.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.