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Finding the Fourth Proportional to 63,443.88, 87,555.42 and 35,149.57

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Solution

The fourth proportional to 63,443.88, 87,555.42 and 35,149.57 is: 48,507.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,443.88 : 87,555.42 = 35,149.57 : x
  2. Step 2: Convert to fraction form
    63,443.88/87,555.42 = 35,149.57/x
  3. Step 3: Cross multiply
    63,443.88x = 87,555.42 × 35,149.57
  4. Step 4: Simplify right side
    63,443.88x = 3,077,534,750.64
  5. Step 5: Solve for x
    x = 3,077,534,750.64/63,443.88
  6. Step 6: Final answer
    x = 48,507.99

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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.