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Finding the Fourth Proportional to 17,220.61, 25,830.92 and 5,542.03

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Solution

The fourth proportional to 17,220.61, 25,830.92 and 5,542.03 is: 8,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.61 : 25,830.92 = 5,542.03 : x
  2. Step 2: Convert to fraction form
    17,220.61/25,830.92 = 5,542.03/x
  3. Step 3: Cross multiply
    17,220.61x = 25,830.92 × 5,542.03
  4. Step 4: Simplify right side
    17,220.61x = 143,155,733.57
  5. Step 5: Solve for x
    x = 143,155,733.57/17,220.61
  6. Step 6: Final answer
    x = 8,313.05

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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.