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Finding the Fourth Proportional to 67,909.52, 101,864.52 and 27,918.20

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Solution

The fourth proportional to 67,909.52, 101,864.52 and 27,918.20 is: 41,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,909.52 : 101,864.52 = 27,918.20 : x
  2. Step 2: Convert to fraction form
    67,909.52/101,864.52 = 27,918.20/x
  3. Step 3: Cross multiply
    67,909.52x = 101,864.52 × 27,918.20
  4. Step 4: Simplify right side
    67,909.52x = 2,843,874,296.93
  5. Step 5: Solve for x
    x = 2,843,874,296.93/67,909.52
  6. Step 6: Final answer
    x = 41,877.40

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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.