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Finding the Fourth Proportional to 13,732.40, 20,597.40 and 4,498.40

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Solution

The fourth proportional to 13,732.40, 20,597.40 and 4,498.40 is: 6,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,732.40 : 20,597.40 = 4,498.40 : x
  2. Step 2: Convert to fraction form
    13,732.40/20,597.40 = 4,498.40/x
  3. Step 3: Cross multiply
    13,732.40x = 20,597.40 × 4,498.40
  4. Step 4: Simplify right side
    13,732.40x = 92,655,344.16
  5. Step 5: Solve for x
    x = 92,655,344.16/13,732.40
  6. Step 6: Final answer
    x = 6,747.21

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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.