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Finding the Fourth Proportional to 68,854.52, 94,997.58 and 38,635.40

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Solution

The fourth proportional to 68,854.52, 94,997.58 and 38,635.40 is: 53,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,854.52 : 94,997.58 = 38,635.40 : x
  2. Step 2: Convert to fraction form
    68,854.52/94,997.58 = 38,635.40/x
  3. Step 3: Cross multiply
    68,854.52x = 94,997.58 × 38,635.40
  4. Step 4: Simplify right side
    68,854.52x = 3,670,269,502.33
  5. Step 5: Solve for x
    x = 3,670,269,502.33/68,854.52
  6. Step 6: Final answer
    x = 53,304.70

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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.