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Finding the Fourth Proportional to 67,057.80, 100,586.70 and 49,561.80

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Solution

The fourth proportional to 67,057.80, 100,586.70 and 49,561.80 is: 74,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,057.80 : 100,586.70 = 49,561.80 : x
  2. Step 2: Convert to fraction form
    67,057.80/100,586.70 = 49,561.80/x
  3. Step 3: Cross multiply
    67,057.80x = 100,586.70 × 49,561.80
  4. Step 4: Simplify right side
    67,057.80x = 4,985,257,908.06
  5. Step 5: Solve for x
    x = 4,985,257,908.06/67,057.80
  6. Step 6: Final answer
    x = 74,342.70

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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.