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Finding the Fourth Proportional to 62,472, 93,717.75 and 20,342.13

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Solution

The fourth proportional to 62,472, 93,717.75 and 20,342.13 is: 30,516.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,472 : 93,717.75 = 20,342.13 : x
  2. Step 2: Convert to fraction form
    62,472/93,717.75 = 20,342.13/x
  3. Step 3: Cross multiply
    62,472x = 93,717.75 × 20,342.13
  4. Step 4: Simplify right side
    62,472x = 1,906,418,653.81
  5. Step 5: Solve for x
    x = 1,906,418,653.81/62,472
  6. Step 6: Final answer
    x = 30,516.37

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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.