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Finding the Fourth Proportional to 17,615.16, 26,406.18 and 5,920.20

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Solution

The fourth proportional to 17,615.16, 26,406.18 and 5,920.20 is: 8,874.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,615.16 : 26,406.18 = 5,920.20 : x
  2. Step 2: Convert to fraction form
    17,615.16/26,406.18 = 5,920.20/x
  3. Step 3: Cross multiply
    17,615.16x = 26,406.18 × 5,920.20
  4. Step 4: Simplify right side
    17,615.16x = 156,329,866.84
  5. Step 5: Solve for x
    x = 156,329,866.84/17,615.16
  6. Step 6: Final answer
    x = 8,874.73

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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.