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Finding the Fourth Proportional to 7,217.80, 10,825.80 and 3,059.47

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Solution

The fourth proportional to 7,217.80, 10,825.80 and 3,059.47 is: 4,588.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.80 : 10,825.80 = 3,059.47 : x
  2. Step 2: Convert to fraction form
    7,217.80/10,825.80 = 3,059.47/x
  3. Step 3: Cross multiply
    7,217.80x = 10,825.80 × 3,059.47
  4. Step 4: Simplify right side
    7,217.80x = 33,121,210.33
  5. Step 5: Solve for x
    x = 33,121,210.33/7,217.80
  6. Step 6: Final answer
    x = 4,588.82

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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.