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Finding the Fourth Proportional to 8,655.60, 12,983.40 and 6,031.20

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Solution

The fourth proportional to 8,655.60, 12,983.40 and 6,031.20 is: 9,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.60 : 12,983.40 = 6,031.20 : x
  2. Step 2: Convert to fraction form
    8,655.60/12,983.40 = 6,031.20/x
  3. Step 3: Cross multiply
    8,655.60x = 12,983.40 × 6,031.20
  4. Step 4: Simplify right side
    8,655.60x = 78,305,482.08
  5. Step 5: Solve for x
    x = 78,305,482.08/8,655.60
  6. Step 6: Final answer
    x = 9,046.80

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