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Finding the Fourth Proportional to 9,251.80, 13,892.55 and 8,569.60

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Solution

The fourth proportional to 9,251.80, 13,892.55 and 8,569.60 is: 12,868.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,251.80 : 13,892.55 = 8,569.60 : x
  2. Step 2: Convert to fraction form
    9,251.80/13,892.55 = 8,569.60/x
  3. Step 3: Cross multiply
    9,251.80x = 13,892.55 × 8,569.60
  4. Step 4: Simplify right side
    9,251.80x = 119,053,596.48
  5. Step 5: Solve for x
    x = 119,053,596.48/9,251.80
  6. Step 6: Final answer
    x = 12,868.16

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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.