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Finding the Fourth Proportional to 9,167.20, 13,750.80 and 8,552.80

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Solution

The fourth proportional to 9,167.20, 13,750.80 and 8,552.80 is: 12,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.20 : 13,750.80 = 8,552.80 : x
  2. Step 2: Convert to fraction form
    9,167.20/13,750.80 = 8,552.80/x
  3. Step 3: Cross multiply
    9,167.20x = 13,750.80 × 8,552.80
  4. Step 4: Simplify right side
    9,167.20x = 117,607,842.24
  5. Step 5: Solve for x
    x = 117,607,842.24/9,167.20
  6. Step 6: Final answer
    x = 12,829.20

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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.