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Finding the Fourth Proportional to 10,732.40, 16,079.40 and 9,196.40

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Solution

The fourth proportional to 10,732.40, 16,079.40 and 9,196.40 is: 13,778.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,732.40 : 16,079.40 = 9,196.40 : x
  2. Step 2: Convert to fraction form
    10,732.40/16,079.40 = 9,196.40/x
  3. Step 3: Cross multiply
    10,732.40x = 16,079.40 × 9,196.40
  4. Step 4: Simplify right side
    10,732.40x = 147,872,594.16
  5. Step 5: Solve for x
    x = 147,872,594.16/10,732.40
  6. Step 6: Final answer
    x = 13,778.15

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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.