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Finding the Fourth Proportional to 63,679.70, 89,282.80 and 63,679.70

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Solution

The fourth proportional to 63,679.70, 89,282.80 and 63,679.70 is: 89,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,679.70 : 89,282.80 = 63,679.70 : x
  2. Step 2: Convert to fraction form
    63,679.70/89,282.80 = 63,679.70/x
  3. Step 3: Cross multiply
    63,679.70x = 89,282.80 × 63,679.70
  4. Step 4: Simplify right side
    63,679.70x = 5,685,501,919.16
  5. Step 5: Solve for x
    x = 5,685,501,919.16/63,679.70
  6. Step 6: Final answer
    x = 89,282.80

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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.