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Finding the Fourth Proportional to 16,534.88, 22,818.32 and 8,981.28

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Solution

The fourth proportional to 16,534.88, 22,818.32 and 8,981.28 is: 12,394.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,534.88 : 22,818.32 = 8,981.28 : x
  2. Step 2: Convert to fraction form
    16,534.88/22,818.32 = 8,981.28/x
  3. Step 3: Cross multiply
    16,534.88x = 22,818.32 × 8,981.28
  4. Step 4: Simplify right side
    16,534.88x = 204,937,721.05
  5. Step 5: Solve for x
    x = 204,937,721.05/16,534.88
  6. Step 6: Final answer
    x = 12,394.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.