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Finding the Fourth Proportional to 47,170.35, 70,753.95 and 13,891.01

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Solution

The fourth proportional to 47,170.35, 70,753.95 and 13,891.01 is: 20,836.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,170.35 : 70,753.95 = 13,891.01 : x
  2. Step 2: Convert to fraction form
    47,170.35/70,753.95 = 13,891.01/x
  3. Step 3: Cross multiply
    47,170.35x = 70,753.95 × 13,891.01
  4. Step 4: Simplify right side
    47,170.35x = 982,843,473.22
  5. Step 5: Solve for x
    x = 982,843,473.22/47,170.35
  6. Step 6: Final answer
    x = 20,836.04

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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.