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Finding the Fourth Proportional to 45,793.55, 69,043.49 and 45,509.24

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Solution

The fourth proportional to 45,793.55, 69,043.49 and 45,509.24 is: 68,614.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,793.55 : 69,043.49 = 45,509.24 : x
  2. Step 2: Convert to fraction form
    45,793.55/69,043.49 = 45,509.24/x
  3. Step 3: Cross multiply
    45,793.55x = 69,043.49 × 45,509.24
  4. Step 4: Simplify right side
    45,793.55x = 3,142,116,872.57
  5. Step 5: Solve for x
    x = 3,142,116,872.57/45,793.55
  6. Step 6: Final answer
    x = 68,614.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.