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Finding the Fourth Proportional to 47,390.70, 71,037.45 and 27,659.10

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Solution

The fourth proportional to 47,390.70, 71,037.45 and 27,659.10 is: 41,460.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,390.70 : 71,037.45 = 27,659.10 : x
  2. Step 2: Convert to fraction form
    47,390.70/71,037.45 = 27,659.10/x
  3. Step 3: Cross multiply
    47,390.70x = 71,037.45 × 27,659.10
  4. Step 4: Simplify right side
    47,390.70x = 1,964,831,933.30
  5. Step 5: Solve for x
    x = 1,964,831,933.30/47,390.70
  6. Step 6: Final answer
    x = 41,460.29

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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.