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Finding the Fourth Proportional to 34,660.50, 47,831.50 and 18,744.95

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Solution

The fourth proportional to 34,660.50, 47,831.50 and 18,744.95 is: 25,868.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,660.50 : 47,831.50 = 18,744.95 : x
  2. Step 2: Convert to fraction form
    34,660.50/47,831.50 = 18,744.95/x
  3. Step 3: Cross multiply
    34,660.50x = 47,831.50 × 18,744.95
  4. Step 4: Simplify right side
    34,660.50x = 896,598,743.04
  5. Step 5: Solve for x
    x = 896,598,743.04/34,660.50
  6. Step 6: Final answer
    x = 25,868.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.