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Finding the Fourth Proportional to 63,575.86, 87,731.72 and 35,281.30

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Solution

The fourth proportional to 63,575.86, 87,731.72 and 35,281.30 is: 48,686.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,575.86 : 87,731.72 = 35,281.30 : x
  2. Step 2: Convert to fraction form
    63,575.86/87,731.72 = 35,281.30/x
  3. Step 3: Cross multiply
    63,575.86x = 87,731.72 × 35,281.30
  4. Step 4: Simplify right side
    63,575.86x = 3,095,289,132.84
  5. Step 5: Solve for x
    x = 3,095,289,132.84/63,575.86
  6. Step 6: Final answer
    x = 48,686.55

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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.