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Finding the Fourth Proportional to 8,892.74, 13,338.98 and 2,652.78

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Solution

The fourth proportional to 8,892.74, 13,338.98 and 2,652.78 is: 3,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,892.74 : 13,338.98 = 2,652.78 : x
  2. Step 2: Convert to fraction form
    8,892.74/13,338.98 = 2,652.78/x
  3. Step 3: Cross multiply
    8,892.74x = 13,338.98 × 2,652.78
  4. Step 4: Simplify right side
    8,892.74x = 35,385,426.07
  5. Step 5: Solve for x
    x = 35,385,426.07/8,892.74
  6. Step 6: Final answer
    x = 3,979.14

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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.