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Finding the Fourth Proportional to 14,921.73, 22,340.48 and 7,885.80

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Solution

The fourth proportional to 14,921.73, 22,340.48 and 7,885.80 is: 11,806.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.73 : 22,340.48 = 7,885.80 : x
  2. Step 2: Convert to fraction form
    14,921.73/22,340.48 = 7,885.80/x
  3. Step 3: Cross multiply
    14,921.73x = 22,340.48 × 7,885.80
  4. Step 4: Simplify right side
    14,921.73x = 176,172,517.76
  5. Step 5: Solve for x
    x = 176,172,517.76/14,921.73
  6. Step 6: Final answer
    x = 11,806.44

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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.