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Finding the Fourth Proportional to 63,740.60, 87,964.42 and 35,448.28

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Solution

The fourth proportional to 63,740.60, 87,964.42 and 35,448.28 is: 48,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,740.60 : 87,964.42 = 35,448.28 : x
  2. Step 2: Convert to fraction form
    63,740.60/87,964.42 = 35,448.28/x
  3. Step 3: Cross multiply
    63,740.60x = 87,964.42 × 35,448.28
  4. Step 4: Simplify right side
    63,740.60x = 3,118,187,390.20
  5. Step 5: Solve for x
    x = 3,118,187,390.20/63,740.60
  6. Step 6: Final answer
    x = 48,919.96

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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.