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Finding the Fourth Proportional to 17,575.40, 26,363.10 and 13,658.60

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Solution

The fourth proportional to 17,575.40, 26,363.10 and 13,658.60 is: 20,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,575.40 : 26,363.10 = 13,658.60 : x
  2. Step 2: Convert to fraction form
    17,575.40/26,363.10 = 13,658.60/x
  3. Step 3: Cross multiply
    17,575.40x = 26,363.10 × 13,658.60
  4. Step 4: Simplify right side
    17,575.40x = 360,083,037.66
  5. Step 5: Solve for x
    x = 360,083,037.66/17,575.40
  6. Step 6: Final answer
    x = 20,487.90

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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.