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Finding the Fourth Proportional to 73,106.76, 100,887.48 and 39,572.76

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Solution

The fourth proportional to 73,106.76, 100,887.48 and 39,572.76 is: 54,610.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,106.76 : 100,887.48 = 39,572.76 : x
  2. Step 2: Convert to fraction form
    73,106.76/100,887.48 = 39,572.76/x
  3. Step 3: Cross multiply
    73,106.76x = 100,887.48 × 39,572.76
  4. Step 4: Simplify right side
    73,106.76x = 3,992,396,033.04
  5. Step 5: Solve for x
    x = 3,992,396,033.04/73,106.76
  6. Step 6: Final answer
    x = 54,610.49

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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.