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Finding the Fourth Proportional to 61,463.61, 84,812.77 and 34,605.43

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Solution

The fourth proportional to 61,463.61, 84,812.77 and 34,605.43 is: 47,751.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,463.61 : 84,812.77 = 34,605.43 : x
  2. Step 2: Convert to fraction form
    61,463.61/84,812.77 = 34,605.43/x
  3. Step 3: Cross multiply
    61,463.61x = 84,812.77 × 34,605.43
  4. Step 4: Simplify right side
    61,463.61x = 2,934,982,206.57
  5. Step 5: Solve for x
    x = 2,934,982,206.57/61,463.61
  6. Step 6: Final answer
    x = 47,751.54

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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.