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Finding the Fourth Proportional to 14,854.50, 20,499.21 and 8,886.42

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Solution

The fourth proportional to 14,854.50, 20,499.21 and 8,886.42 is: 12,263.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,854.50 : 20,499.21 = 8,886.42 : x
  2. Step 2: Convert to fraction form
    14,854.50/20,499.21 = 8,886.42/x
  3. Step 3: Cross multiply
    14,854.50x = 20,499.21 × 8,886.42
  4. Step 4: Simplify right side
    14,854.50x = 182,164,589.73
  5. Step 5: Solve for x
    x = 182,164,589.73/14,854.50
  6. Step 6: Final answer
    x = 12,263.26

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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.