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Finding the Fourth Proportional to 55,678.80, 83,406.80 and 33,479.94

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Solution

The fourth proportional to 55,678.80, 83,406.80 and 33,479.94 is: 50,152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,678.80 : 83,406.80 = 33,479.94 : x
  2. Step 2: Convert to fraction form
    55,678.80/83,406.80 = 33,479.94/x
  3. Step 3: Cross multiply
    55,678.80x = 83,406.80 × 33,479.94
  4. Step 4: Simplify right side
    55,678.80x = 2,792,454,659.59
  5. Step 5: Solve for x
    x = 2,792,454,659.59/55,678.80
  6. Step 6: Final answer
    x = 50,152.92

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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.