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Finding the Fourth Proportional to 14,759.16, 20,349.90 and 12,060.42

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Solution

The fourth proportional to 14,759.16, 20,349.90 and 12,060.42 is: 16,628.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,759.16 : 20,349.90 = 12,060.42 : x
  2. Step 2: Convert to fraction form
    14,759.16/20,349.90 = 12,060.42/x
  3. Step 3: Cross multiply
    14,759.16x = 20,349.90 × 12,060.42
  4. Step 4: Simplify right side
    14,759.16x = 245,428,340.96
  5. Step 5: Solve for x
    x = 245,428,340.96/14,759.16
  6. Step 6: Final answer
    x = 16,628.88

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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.