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Finding the Fourth Proportional to 13,337.68, 20,008.68 and 4,103.68

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Solution

The fourth proportional to 13,337.68, 20,008.68 and 4,103.68 is: 6,156.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.68 : 20,008.68 = 4,103.68 : x
  2. Step 2: Convert to fraction form
    13,337.68/20,008.68 = 4,103.68/x
  3. Step 3: Cross multiply
    13,337.68x = 20,008.68 × 4,103.68
  4. Step 4: Simplify right side
    13,337.68x = 82,109,219.94
  5. Step 5: Solve for x
    x = 82,109,219.94/13,337.68
  6. Step 6: Final answer
    x = 6,156.18

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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.