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Finding the Fourth Proportional to 68,876.64, 95,046.48 and 38,658.24

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Solution

The fourth proportional to 68,876.64, 95,046.48 and 38,658.24 is: 53,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,876.64 : 95,046.48 = 38,658.24 : x
  2. Step 2: Convert to fraction form
    68,876.64/95,046.48 = 38,658.24/x
  3. Step 3: Cross multiply
    68,876.64x = 95,046.48 × 38,658.24
  4. Step 4: Simplify right side
    68,876.64x = 3,674,329,635.00
  5. Step 5: Solve for x
    x = 3,674,329,635.00/68,876.64
  6. Step 6: Final answer
    x = 53,346.53

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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.