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Finding the Fourth Proportional to 8,468.64, 12,701.88 and 3,726.72

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Solution

The fourth proportional to 8,468.64, 12,701.88 and 3,726.72 is: 5,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.64 : 12,701.88 = 3,726.72 : x
  2. Step 2: Convert to fraction form
    8,468.64/12,701.88 = 3,726.72/x
  3. Step 3: Cross multiply
    8,468.64x = 12,701.88 × 3,726.72
  4. Step 4: Simplify right side
    8,468.64x = 47,336,350.23
  5. Step 5: Solve for x
    x = 47,336,350.23/8,468.64
  6. Step 6: Final answer
    x = 5,589.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.