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Finding the Fourth Proportional to 8,387.00, 12,568.70 and 6,624.26

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Solution

The fourth proportional to 8,387.00, 12,568.70 and 6,624.26 is: 9,927.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.00 : 12,568.70 = 6,624.26 : x
  2. Step 2: Convert to fraction form
    8,387.00/12,568.70 = 6,624.26/x
  3. Step 3: Cross multiply
    8,387.00x = 12,568.70 × 6,624.26
  4. Step 4: Simplify right side
    8,387.00x = 83,258,240.70
  5. Step 5: Solve for x
    x = 83,258,240.70/8,387.00
  6. Step 6: Final answer
    x = 9,927.06

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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.