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Finding the Fourth Proportional to 69,100.47, 95,363.49 and 38,888.70

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Solution

The fourth proportional to 69,100.47, 95,363.49 and 38,888.70 is: 53,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,100.47 : 95,363.49 = 38,888.70 : x
  2. Step 2: Convert to fraction form
    69,100.47/95,363.49 = 38,888.70/x
  3. Step 3: Cross multiply
    69,100.47x = 95,363.49 × 38,888.70
  4. Step 4: Simplify right side
    69,100.47x = 3,708,562,153.56
  5. Step 5: Solve for x
    x = 3,708,562,153.56/69,100.47
  6. Step 6: Final answer
    x = 53,669.13

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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.