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Finding the Fourth Proportional to 8,882.71, 13,322.85 and 2,643.69

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Solution

The fourth proportional to 8,882.71, 13,322.85 and 2,643.69 is: 3,965.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,882.71 : 13,322.85 = 2,643.69 : x
  2. Step 2: Convert to fraction form
    8,882.71/13,322.85 = 2,643.69/x
  3. Step 3: Cross multiply
    8,882.71x = 13,322.85 × 2,643.69
  4. Step 4: Simplify right side
    8,882.71x = 35,221,418.70
  5. Step 5: Solve for x
    x = 35,221,418.70/8,882.71
  6. Step 6: Final answer
    x = 3,965.17

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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.