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Finding the Fourth Proportional to 62,508.61, 93,772.65 and 20,945.89

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Solution

The fourth proportional to 62,508.61, 93,772.65 and 20,945.89 is: 31,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,508.61 : 93,772.65 = 20,945.89 : x
  2. Step 2: Convert to fraction form
    62,508.61/93,772.65 = 20,945.89/x
  3. Step 3: Cross multiply
    62,508.61x = 93,772.65 × 20,945.89
  4. Step 4: Simplify right side
    62,508.61x = 1,964,151,611.91
  5. Step 5: Solve for x
    x = 1,964,151,611.91/62,508.61
  6. Step 6: Final answer
    x = 31,422.10

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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.