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Finding the Fourth Proportional to 13,873.53, 20,766.53 and 9,912.02

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Solution

The fourth proportional to 13,873.53, 20,766.53 and 9,912.02 is: 14,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.53 : 20,766.53 = 9,912.02 : x
  2. Step 2: Convert to fraction form
    13,873.53/20,766.53 = 9,912.02/x
  3. Step 3: Cross multiply
    13,873.53x = 20,766.53 × 9,912.02
  4. Step 4: Simplify right side
    13,873.53x = 205,838,242.69
  5. Step 5: Solve for x
    x = 205,838,242.69/13,873.53
  6. Step 6: Final answer
    x = 14,836.76

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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.