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Finding the Fourth Proportional to 45,479.80, 67,912.80 and 37,176.04

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Solution

The fourth proportional to 45,479.80, 67,912.80 and 37,176.04 is: 55,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,479.80 : 67,912.80 = 37,176.04 : x
  2. Step 2: Convert to fraction form
    45,479.80/67,912.80 = 37,176.04/x
  3. Step 3: Cross multiply
    45,479.80x = 67,912.80 × 37,176.04
  4. Step 4: Simplify right side
    45,479.80x = 2,524,728,969.31
  5. Step 5: Solve for x
    x = 2,524,728,969.31/45,479.80
  6. Step 6: Final answer
    x = 55,513.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.