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Finding the Fourth Proportional to 16,271.18, 22,454.28 and 8,819.18

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Solution

The fourth proportional to 16,271.18, 22,454.28 and 8,819.18 is: 12,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,271.18 : 22,454.28 = 8,819.18 : x
  2. Step 2: Convert to fraction form
    16,271.18/22,454.28 = 8,819.18/x
  3. Step 3: Cross multiply
    16,271.18x = 22,454.28 × 8,819.18
  4. Step 4: Simplify right side
    16,271.18x = 198,028,337.09
  5. Step 5: Solve for x
    x = 198,028,337.09/16,271.18
  6. Step 6: Final answer
    x = 12,170.50

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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.