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Finding the Fourth Proportional to 61,382.60, 84,340.85 and 48,785.48

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Solution

The fourth proportional to 61,382.60, 84,340.85 and 48,785.48 is: 67,032.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,382.60 : 84,340.85 = 48,785.48 : x
  2. Step 2: Convert to fraction form
    61,382.60/84,340.85 = 48,785.48/x
  3. Step 3: Cross multiply
    61,382.60x = 84,340.85 × 48,785.48
  4. Step 4: Simplify right side
    61,382.60x = 4,114,608,551.12
  5. Step 5: Solve for x
    x = 4,114,608,551.12/61,382.60
  6. Step 6: Final answer
    x = 67,032.17

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.