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Finding the Fourth Proportional to 50,703.80, 69,960.30 and 29,472.20

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Solution

The fourth proportional to 50,703.80, 69,960.30 and 29,472.20 is: 40,665.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,703.80 : 69,960.30 = 29,472.20 : x
  2. Step 2: Convert to fraction form
    50,703.80/69,960.30 = 29,472.20/x
  3. Step 3: Cross multiply
    50,703.80x = 69,960.30 × 29,472.20
  4. Step 4: Simplify right side
    50,703.80x = 2,061,883,953.66
  5. Step 5: Solve for x
    x = 2,061,883,953.66/50,703.80
  6. Step 6: Final answer
    x = 40,665.27

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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.