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Finding the Fourth Proportional to 8,560.55, 12,842.19 and 2,716.71

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Solution

The fourth proportional to 8,560.55, 12,842.19 and 2,716.71 is: 4,075.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.55 : 12,842.19 = 2,716.71 : x
  2. Step 2: Convert to fraction form
    8,560.55/12,842.19 = 2,716.71/x
  3. Step 3: Cross multiply
    8,560.55x = 12,842.19 × 2,716.71
  4. Step 4: Simplify right side
    8,560.55x = 34,888,505.99
  5. Step 5: Solve for x
    x = 34,888,505.99/8,560.55
  6. Step 6: Final answer
    x = 4,075.50

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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.