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Finding the Fourth Proportional to 61,712.70, 92,494.86 and 28,386.84

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Solution

The fourth proportional to 61,712.70, 92,494.86 and 28,386.84 is: 42,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,712.70 : 92,494.86 = 28,386.84 : x
  2. Step 2: Convert to fraction form
    61,712.70/92,494.86 = 28,386.84/x
  3. Step 3: Cross multiply
    61,712.70x = 92,494.86 × 28,386.84
  4. Step 4: Simplify right side
    61,712.70x = 2,625,636,791.64
  5. Step 5: Solve for x
    x = 2,625,636,791.64/61,712.70
  6. Step 6: Final answer
    x = 42,546.13

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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.