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Finding the Fourth Proportional to 69,471.09, 95,869.71 and 39,266.19

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Solution

The fourth proportional to 69,471.09, 95,869.71 and 39,266.19 is: 54,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,471.09 : 95,869.71 = 39,266.19 : x
  2. Step 2: Convert to fraction form
    69,471.09/95,869.71 = 39,266.19/x
  3. Step 3: Cross multiply
    69,471.09x = 95,869.71 × 39,266.19
  4. Step 4: Simplify right side
    69,471.09x = 3,764,438,248.10
  5. Step 5: Solve for x
    x = 3,764,438,248.10/69,471.09
  6. Step 6: Final answer
    x = 54,187.12

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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.