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Finding the Fourth Proportional to 8,700.80, 13,043.10 and 6,068.30

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Solution

The fourth proportional to 8,700.80, 13,043.10 and 6,068.30 is: 9,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.80 : 13,043.10 = 6,068.30 : x
  2. Step 2: Convert to fraction form
    8,700.80/13,043.10 = 6,068.30/x
  3. Step 3: Cross multiply
    8,700.80x = 13,043.10 × 6,068.30
  4. Step 4: Simplify right side
    8,700.80x = 79,149,443.73
  5. Step 5: Solve for x
    x = 79,149,443.73/8,700.80
  6. Step 6: Final answer
    x = 9,096.80

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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.