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Finding the Fourth Proportional to 69,070.80, 95,309.97 and 38,855.49

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Solution

The fourth proportional to 69,070.80, 95,309.97 and 38,855.49 is: 53,616.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,070.80 : 95,309.97 = 38,855.49 : x
  2. Step 2: Convert to fraction form
    69,070.80/95,309.97 = 38,855.49/x
  3. Step 3: Cross multiply
    69,070.80x = 95,309.97 × 38,855.49
  4. Step 4: Simplify right side
    69,070.80x = 3,703,315,947.08
  5. Step 5: Solve for x
    x = 3,703,315,947.08/69,070.80
  6. Step 6: Final answer
    x = 53,616.23

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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.