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Finding the Fourth Proportional to 17,223.52, 25,831.71 and 7,860.91

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Solution

The fourth proportional to 17,223.52, 25,831.71 and 7,860.91 is: 11,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,223.52 : 25,831.71 = 7,860.91 : x
  2. Step 2: Convert to fraction form
    17,223.52/25,831.71 = 7,860.91/x
  3. Step 3: Cross multiply
    17,223.52x = 25,831.71 × 7,860.91
  4. Step 4: Simplify right side
    17,223.52x = 203,060,747.46
  5. Step 5: Solve for x
    x = 203,060,747.46/17,223.52
  6. Step 6: Final answer
    x = 11,789.74

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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.