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Finding the Fourth Proportional to 18,100.68, 24,953.24 and 13,312.16

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Solution

The fourth proportional to 18,100.68, 24,953.24 and 13,312.16 is: 18,351.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.68 : 24,953.24 = 13,312.16 : x
  2. Step 2: Convert to fraction form
    18,100.68/24,953.24 = 13,312.16/x
  3. Step 3: Cross multiply
    18,100.68x = 24,953.24 × 13,312.16
  4. Step 4: Simplify right side
    18,100.68x = 332,181,523.40
  5. Step 5: Solve for x
    x = 332,181,523.40/18,100.68
  6. Step 6: Final answer
    x = 18,351.88

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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.