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Finding the Fourth Proportional to 63,671.54, 87,862.47 and 34,990.58

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Solution

The fourth proportional to 63,671.54, 87,862.47 and 34,990.58 is: 48,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,671.54 : 87,862.47 = 34,990.58 : x
  2. Step 2: Convert to fraction form
    63,671.54/87,862.47 = 34,990.58/x
  3. Step 3: Cross multiply
    63,671.54x = 87,862.47 × 34,990.58
  4. Step 4: Simplify right side
    63,671.54x = 3,074,358,626.86
  5. Step 5: Solve for x
    x = 3,074,358,626.86/63,671.54
  6. Step 6: Final answer
    x = 48,284.66

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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.