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Finding the Fourth Proportional to 61,781.40, 92,671.34 and 15,034.68

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Solution

The fourth proportional to 61,781.40, 92,671.34 and 15,034.68 is: 22,551.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,781.40 : 92,671.34 = 15,034.68 : x
  2. Step 2: Convert to fraction form
    61,781.40/92,671.34 = 15,034.68/x
  3. Step 3: Cross multiply
    61,781.40x = 92,671.34 × 15,034.68
  4. Step 4: Simplify right side
    61,781.40x = 1,393,283,942.07
  5. Step 5: Solve for x
    x = 1,393,283,942.07/61,781.40
  6. Step 6: Final answer
    x = 22,551.84

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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.