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Finding the Fourth Proportional to 61,693.47, 85,136.33 and 34,834.39

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Solution

The fourth proportional to 61,693.47, 85,136.33 and 34,834.39 is: 48,071.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,693.47 : 85,136.33 = 34,834.39 : x
  2. Step 2: Convert to fraction form
    61,693.47/85,136.33 = 34,834.39/x
  3. Step 3: Cross multiply
    61,693.47x = 85,136.33 × 34,834.39
  4. Step 4: Simplify right side
    61,693.47x = 2,965,671,996.63
  5. Step 5: Solve for x
    x = 2,965,671,996.63/61,693.47
  6. Step 6: Final answer
    x = 48,071.08

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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.