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Finding the Fourth Proportional to 52,911, 73,015.92 and 29,037.60

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Solution

The fourth proportional to 52,911, 73,015.92 and 29,037.60 is: 40,071.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,911 : 73,015.92 = 29,037.60 : x
  2. Step 2: Convert to fraction form
    52,911/73,015.92 = 29,037.60/x
  3. Step 3: Cross multiply
    52,911x = 73,015.92 × 29,037.60
  4. Step 4: Simplify right side
    52,911x = 2,120,207,078.59
  5. Step 5: Solve for x
    x = 2,120,207,078.59/52,911
  6. Step 6: Final answer
    x = 40,071.20

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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.