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Finding the Fourth Proportional to 62,603.90, 93,906 and 18,231.74

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Solution

The fourth proportional to 62,603.90, 93,906 and 18,231.74 is: 27,347.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,603.90 : 93,906 = 18,231.74 : x
  2. Step 2: Convert to fraction form
    62,603.90/93,906 = 18,231.74/x
  3. Step 3: Cross multiply
    62,603.90x = 93,906 × 18,231.74
  4. Step 4: Simplify right side
    62,603.90x = 1,712,069,306.91
  5. Step 5: Solve for x
    x = 1,712,069,306.91/62,603.90
  6. Step 6: Final answer
    x = 27,347.65

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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.