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Finding the Fourth Proportional to 67,831.70, 101,747.55 and 57,809.30

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Solution

The fourth proportional to 67,831.70, 101,747.55 and 57,809.30 is: 86,713.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,831.70 : 101,747.55 = 57,809.30 : x
  2. Step 2: Convert to fraction form
    67,831.70/101,747.55 = 57,809.30/x
  3. Step 3: Cross multiply
    67,831.70x = 101,747.55 × 57,809.30
  4. Step 4: Simplify right side
    67,831.70x = 5,881,954,642.22
  5. Step 5: Solve for x
    x = 5,881,954,642.22/67,831.70
  6. Step 6: Final answer
    x = 86,713.95

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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.