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Finding the Fourth Proportional to 9,579.11, 14,349.98 and 5,406.49

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Solution

The fourth proportional to 9,579.11, 14,349.98 and 5,406.49 is: 8,099.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579.11 : 14,349.98 = 5,406.49 : x
  2. Step 2: Convert to fraction form
    9,579.11/14,349.98 = 5,406.49/x
  3. Step 3: Cross multiply
    9,579.11x = 14,349.98 × 5,406.49
  4. Step 4: Simplify right side
    9,579.11x = 77,582,996.34
  5. Step 5: Solve for x
    x = 77,582,996.34/9,579.11
  6. Step 6: Final answer
    x = 8,099.19

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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.