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Finding the Fourth Proportional to 61,456.90, 84,806.89 and 34,598.34

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Solution

The fourth proportional to 61,456.90, 84,806.89 and 34,598.34 is: 47,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,456.90 : 84,806.89 = 34,598.34 : x
  2. Step 2: Convert to fraction form
    61,456.90/84,806.89 = 34,598.34/x
  3. Step 3: Cross multiply
    61,456.90x = 84,806.89 × 34,598.34
  4. Step 4: Simplify right side
    61,456.90x = 2,934,177,614.56
  5. Step 5: Solve for x
    x = 2,934,177,614.56/61,456.90
  6. Step 6: Final answer
    x = 47,743.66

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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.