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Finding the Fourth Proportional to 8,842.78, 13,272.90 and 6,496.21

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Solution

The fourth proportional to 8,842.78, 13,272.90 and 6,496.21 is: 9,750.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,842.78 : 13,272.90 = 6,496.21 : x
  2. Step 2: Convert to fraction form
    8,842.78/13,272.90 = 6,496.21/x
  3. Step 3: Cross multiply
    8,842.78x = 13,272.90 × 6,496.21
  4. Step 4: Simplify right side
    8,842.78x = 86,223,545.71
  5. Step 5: Solve for x
    x = 86,223,545.71/8,842.78
  6. Step 6: Final answer
    x = 9,750.73

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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.