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Finding the Fourth Proportional to 21,863.71, 32,767.88 and 13,963.17

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Solution

The fourth proportional to 21,863.71, 32,767.88 and 13,963.17 is: 20,927.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863.71 : 32,767.88 = 13,963.17 : x
  2. Step 2: Convert to fraction form
    21,863.71/32,767.88 = 13,963.17/x
  3. Step 3: Cross multiply
    21,863.71x = 32,767.88 × 13,963.17
  4. Step 4: Simplify right side
    21,863.71x = 457,543,478.98
  5. Step 5: Solve for x
    x = 457,543,478.98/21,863.71
  6. Step 6: Final answer
    x = 20,927.08

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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.