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Finding the Fourth Proportional to 60,689.85, 83,750.22 and 33,831.78

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Solution

The fourth proportional to 60,689.85, 83,750.22 and 33,831.78 is: 46,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,689.85 : 83,750.22 = 33,831.78 : x
  2. Step 2: Convert to fraction form
    60,689.85/83,750.22 = 33,831.78/x
  3. Step 3: Cross multiply
    60,689.85x = 83,750.22 × 33,831.78
  4. Step 4: Simplify right side
    60,689.85x = 2,833,419,017.99
  5. Step 5: Solve for x
    x = 2,833,419,017.99/60,689.85
  6. Step 6: Final answer
    x = 46,686.87

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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.