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Finding the Fourth Proportional to 22,159.64, 33,251.88 and 11,771.12

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Solution

The fourth proportional to 22,159.64, 33,251.88 and 11,771.12 is: 17,663.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.64 : 33,251.88 = 11,771.12 : x
  2. Step 2: Convert to fraction form
    22,159.64/33,251.88 = 11,771.12/x
  3. Step 3: Cross multiply
    22,159.64x = 33,251.88 × 11,771.12
  4. Step 4: Simplify right side
    22,159.64x = 391,411,869.71
  5. Step 5: Solve for x
    x = 391,411,869.71/22,159.64
  6. Step 6: Final answer
    x = 17,663.28

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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.