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Finding the Fourth Proportional to 75,391.97, 112,915.71 and 35,976.77

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Solution

The fourth proportional to 75,391.97, 112,915.71 and 35,976.77 is: 53,882.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,391.97 : 112,915.71 = 35,976.77 : x
  2. Step 2: Convert to fraction form
    75,391.97/112,915.71 = 35,976.77/x
  3. Step 3: Cross multiply
    75,391.97x = 112,915.71 × 35,976.77
  4. Step 4: Simplify right side
    75,391.97x = 4,062,341,963.48
  5. Step 5: Solve for x
    x = 4,062,341,963.48/75,391.97
  6. Step 6: Final answer
    x = 53,882.96

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1.5x scale

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.