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Finding the Fourth Proportional to 60,809.22, 83,918.09 and 38,149.17

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Solution

The fourth proportional to 60,809.22, 83,918.09 and 38,149.17 is: 52,646.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,809.22 : 83,918.09 = 38,149.17 : x
  2. Step 2: Convert to fraction form
    60,809.22/83,918.09 = 38,149.17/x
  3. Step 3: Cross multiply
    60,809.22x = 83,918.09 × 38,149.17
  4. Step 4: Simplify right side
    60,809.22x = 3,201,405,481.49
  5. Step 5: Solve for x
    x = 3,201,405,481.49/60,809.22
  6. Step 6: Final answer
    x = 52,646.71

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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.