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Finding the Fourth Proportional to 62,875.67, 94,293.47 and 20,747.90

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Solution

The fourth proportional to 62,875.67, 94,293.47 and 20,747.90 is: 31,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,875.67 : 94,293.47 = 20,747.90 : x
  2. Step 2: Convert to fraction form
    62,875.67/94,293.47 = 20,747.90/x
  3. Step 3: Cross multiply
    62,875.67x = 94,293.47 × 20,747.90
  4. Step 4: Simplify right side
    62,875.67x = 1,956,390,911.01
  5. Step 5: Solve for x
    x = 1,956,390,911.01/62,875.67
  6. Step 6: Final answer
    x = 31,115.23

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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.