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Finding the Fourth Proportional to 63,679.20, 89,282.10 and 63,679.20

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Solution

The fourth proportional to 63,679.20, 89,282.10 and 63,679.20 is: 89,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,679.20 : 89,282.10 = 63,679.20 : x
  2. Step 2: Convert to fraction form
    63,679.20/89,282.10 = 63,679.20/x
  3. Step 3: Cross multiply
    63,679.20x = 89,282.10 × 63,679.20
  4. Step 4: Simplify right side
    63,679.20x = 5,685,412,702.32
  5. Step 5: Solve for x
    x = 5,685,412,702.32/63,679.20
  6. Step 6: Final answer
    x = 89,282.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.