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Finding the Fourth Proportional to 8,248.40, 12,374.20 and 3,568.40

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Solution

The fourth proportional to 8,248.40, 12,374.20 and 3,568.40 is: 5,353.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248.40 : 12,374.20 = 3,568.40 : x
  2. Step 2: Convert to fraction form
    8,248.40/12,374.20 = 3,568.40/x
  3. Step 3: Cross multiply
    8,248.40x = 12,374.20 × 3,568.40
  4. Step 4: Simplify right side
    8,248.40x = 44,156,095.28
  5. Step 5: Solve for x
    x = 44,156,095.28/8,248.40
  6. Step 6: Final answer
    x = 5,353.29

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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.