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Finding the Fourth Proportional to 72,874.69, 100,549.49 and 41,043.58

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Solution

The fourth proportional to 72,874.69, 100,549.49 and 41,043.58 is: 56,630.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,874.69 : 100,549.49 = 41,043.58 : x
  2. Step 2: Convert to fraction form
    72,874.69/100,549.49 = 41,043.58/x
  3. Step 3: Cross multiply
    72,874.69x = 100,549.49 × 41,043.58
  4. Step 4: Simplify right side
    72,874.69x = 4,126,910,580.18
  5. Step 5: Solve for x
    x = 4,126,910,580.18/72,874.69
  6. Step 6: Final answer
    x = 56,630.23

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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.