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Finding the Fourth Proportional to 14,855.76, 20,500.43 and 8,883.90

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Solution

The fourth proportional to 14,855.76, 20,500.43 and 8,883.90 is: 12,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.76 : 20,500.43 = 8,883.90 : x
  2. Step 2: Convert to fraction form
    14,855.76/20,500.43 = 8,883.90/x
  3. Step 3: Cross multiply
    14,855.76x = 20,500.43 × 8,883.90
  4. Step 4: Simplify right side
    14,855.76x = 182,123,725.66
  5. Step 5: Solve for x
    x = 182,123,725.66/14,855.76
  6. Step 6: Final answer
    x = 12,259.47

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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.