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Finding the Fourth Proportional to 61,905.77, 85,432.04 and 34,683.04

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Solution

The fourth proportional to 61,905.77, 85,432.04 and 34,683.04 is: 47,863.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,905.77 : 85,432.04 = 34,683.04 : x
  2. Step 2: Convert to fraction form
    61,905.77/85,432.04 = 34,683.04/x
  3. Step 3: Cross multiply
    61,905.77x = 85,432.04 × 34,683.04
  4. Step 4: Simplify right side
    61,905.77x = 2,963,042,260.03
  5. Step 5: Solve for x
    x = 2,963,042,260.03/61,905.77
  6. Step 6: Final answer
    x = 47,863.75

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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.