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Finding the Fourth Proportional to 55,910.97, 83,866.46 and 38,327.49

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Solution

The fourth proportional to 55,910.97, 83,866.46 and 38,327.49 is: 57,491.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,910.97 : 83,866.46 = 38,327.49 : x
  2. Step 2: Convert to fraction form
    55,910.97/83,866.46 = 38,327.49/x
  3. Step 3: Cross multiply
    55,910.97x = 83,866.46 × 38,327.49
  4. Step 4: Simplify right side
    55,910.97x = 3,214,390,715.35
  5. Step 5: Solve for x
    x = 3,214,390,715.35/55,910.97
  6. Step 6: Final answer
    x = 57,491.24

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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.