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Finding the Fourth Proportional to 61,695.80, 85,136.74 and 34,843.76

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Solution

The fourth proportional to 61,695.80, 85,136.74 and 34,843.76 is: 48,082.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,695.80 : 85,136.74 = 34,843.76 : x
  2. Step 2: Convert to fraction form
    61,695.80/85,136.74 = 34,843.76/x
  3. Step 3: Cross multiply
    61,695.80x = 85,136.74 × 34,843.76
  4. Step 4: Simplify right side
    61,695.80x = 2,966,484,135.74
  5. Step 5: Solve for x
    x = 2,966,484,135.74/61,695.80
  6. Step 6: Final answer
    x = 48,082.43

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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.