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Finding the Fourth Proportional to 51,355.92, 70,845.36 and 35,449.20

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Solution

The fourth proportional to 51,355.92, 70,845.36 and 35,449.20 is: 48,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,355.92 : 70,845.36 = 35,449.20 : x
  2. Step 2: Convert to fraction form
    51,355.92/70,845.36 = 35,449.20/x
  3. Step 3: Cross multiply
    51,355.92x = 70,845.36 × 35,449.20
  4. Step 4: Simplify right side
    51,355.92x = 2,511,411,335.71
  5. Step 5: Solve for x
    x = 2,511,411,335.71/51,355.92
  6. Step 6: Final answer
    x = 48,902.08

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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.