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Finding the Fourth Proportional to 17,217.12, 25,830.48 and 8,900.16

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Solution

The fourth proportional to 17,217.12, 25,830.48 and 8,900.16 is: 13,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,217.12 : 25,830.48 = 8,900.16 : x
  2. Step 2: Convert to fraction form
    17,217.12/25,830.48 = 8,900.16/x
  3. Step 3: Cross multiply
    17,217.12x = 25,830.48 × 8,900.16
  4. Step 4: Simplify right side
    17,217.12x = 229,895,404.88
  5. Step 5: Solve for x
    x = 229,895,404.88/17,217.12
  6. Step 6: Final answer
    x = 13,352.72

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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.