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Finding the Fourth Proportional to 8,167.95, 12,248.73 and 3,490.20

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Solution

The fourth proportional to 8,167.95, 12,248.73 and 3,490.20 is: 5,233.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.95 : 12,248.73 = 3,490.20 : x
  2. Step 2: Convert to fraction form
    8,167.95/12,248.73 = 3,490.20/x
  3. Step 3: Cross multiply
    8,167.95x = 12,248.73 × 3,490.20
  4. Step 4: Simplify right side
    8,167.95x = 42,750,517.45
  5. Step 5: Solve for x
    x = 42,750,517.45/8,167.95
  6. Step 6: Final answer
    x = 5,233.93

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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.