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Finding the Fourth Proportional to 47,073.70, 70,867.02 and 40,645.54

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Solution

The fourth proportional to 47,073.70, 70,867.02 and 40,645.54 is: 61,189.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,073.70 : 70,867.02 = 40,645.54 : x
  2. Step 2: Convert to fraction form
    47,073.70/70,867.02 = 40,645.54/x
  3. Step 3: Cross multiply
    47,073.70x = 70,867.02 × 40,645.54
  4. Step 4: Simplify right side
    47,073.70x = 2,880,428,092.86
  5. Step 5: Solve for x
    x = 2,880,428,092.86/47,073.70
  6. Step 6: Final answer
    x = 61,189.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.