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Finding the Fourth Proportional to 63,486.76, 87,613.86 and 35,190.76

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Solution

The fourth proportional to 63,486.76, 87,613.86 and 35,190.76 is: 48,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,486.76 : 87,613.86 = 35,190.76 : x
  2. Step 2: Convert to fraction form
    63,486.76/87,613.86 = 35,190.76/x
  3. Step 3: Cross multiply
    63,486.76x = 87,613.86 × 35,190.76
  4. Step 4: Simplify right side
    63,486.76x = 3,083,198,319.93
  5. Step 5: Solve for x
    x = 3,083,198,319.93/63,486.76
  6. Step 6: Final answer
    x = 48,564.43

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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.