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Finding the Fourth Proportional to 63,742.80, 95,614.20 and 53,605.20

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Solution

The fourth proportional to 63,742.80, 95,614.20 and 53,605.20 is: 80,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,742.80 : 95,614.20 = 53,605.20 : x
  2. Step 2: Convert to fraction form
    63,742.80/95,614.20 = 53,605.20/x
  3. Step 3: Cross multiply
    63,742.80x = 95,614.20 × 53,605.20
  4. Step 4: Simplify right side
    63,742.80x = 5,125,418,313.84
  5. Step 5: Solve for x
    x = 5,125,418,313.84/63,742.80
  6. Step 6: Final answer
    x = 80,407.80

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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.