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Finding the Fourth Proportional to 63,671.40, 87,841.98 and 48,548.40

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Solution

The fourth proportional to 63,671.40, 87,841.98 and 48,548.40 is: 66,978.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,671.40 : 87,841.98 = 48,548.40 : x
  2. Step 2: Convert to fraction form
    63,671.40/87,841.98 = 48,548.40/x
  3. Step 3: Cross multiply
    63,671.40x = 87,841.98 × 48,548.40
  4. Step 4: Simplify right side
    63,671.40x = 4,264,587,581.83
  5. Step 5: Solve for x
    x = 4,264,587,581.83/63,671.40
  6. Step 6: Final answer
    x = 66,978.07

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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.