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Finding the Fourth Proportional to 9,612,005.10, 13,431,612.90 and 9,612,005.10

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Solution

The fourth proportional to 9,612,005.10, 13,431,612.90 and 9,612,005.10 is: 13,431,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612,005.10 : 13,431,612.90 = 9,612,005.10 : x
  2. Step 2: Convert to fraction form
    9,612,005.10/13,431,612.90 = 9,612,005.10/x
  3. Step 3: Cross multiply
    9,612,005.10x = 13,431,612.90 × 9,612,005.10
  4. Step 4: Simplify right side
    9,612,005.10x = 129,104,731,696,025.78
  5. Step 5: Solve for x
    x = 129,104,731,696,025.78/9,612,005.10
  6. Step 6: Final answer
    x = 13,431,612.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.