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Finding the Fourth Proportional to 69,641.97, 96,107.88 and 40,963.71

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Solution

The fourth proportional to 69,641.97, 96,107.88 and 40,963.71 is: 56,531.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,641.97 : 96,107.88 = 40,963.71 : x
  2. Step 2: Convert to fraction form
    69,641.97/96,107.88 = 40,963.71/x
  3. Step 3: Cross multiply
    69,641.97x = 96,107.88 × 40,963.71
  4. Step 4: Simplify right side
    69,641.97x = 3,936,935,325.03
  5. Step 5: Solve for x
    x = 3,936,935,325.03/69,641.97
  6. Step 6: Final answer
    x = 56,531.07

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1.5x scale

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.