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Finding the Fourth Proportional to 17,517.80, 26,280.88 and 5,831.12

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Solution

The fourth proportional to 17,517.80, 26,280.88 and 5,831.12 is: 8,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,517.80 : 26,280.88 = 5,831.12 : x
  2. Step 2: Convert to fraction form
    17,517.80/26,280.88 = 5,831.12/x
  3. Step 3: Cross multiply
    17,517.80x = 26,280.88 × 5,831.12
  4. Step 4: Simplify right side
    17,517.80x = 153,246,964.99
  5. Step 5: Solve for x
    x = 153,246,964.99/17,517.80
  6. Step 6: Final answer
    x = 8,748.07

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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.