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Finding the Fourth Proportional to 69,455.71, 95,844.14 and 39,242.30

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Solution

The fourth proportional to 69,455.71, 95,844.14 and 39,242.30 is: 54,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,455.71 : 95,844.14 = 39,242.30 : x
  2. Step 2: Convert to fraction form
    69,455.71/95,844.14 = 39,242.30/x
  3. Step 3: Cross multiply
    69,455.71x = 95,844.14 × 39,242.30
  4. Step 4: Simplify right side
    69,455.71x = 3,761,144,495.12
  5. Step 5: Solve for x
    x = 3,761,144,495.12/69,455.71
  6. Step 6: Final answer
    x = 54,151.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.