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Finding the Fourth Proportional to 7,791,251.42, 10,751,739.28 and 4,258,891.04

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Solution

The fourth proportional to 7,791,251.42, 10,751,739.28 and 4,258,891.04 is: 5,877,167.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791,251.42 : 10,751,739.28 = 4,258,891.04 : x
  2. Step 2: Convert to fraction form
    7,791,251.42/10,751,739.28 = 4,258,891.04/x
  3. Step 3: Cross multiply
    7,791,251.42x = 10,751,739.28 × 4,258,891.04
  4. Step 4: Simplify right side
    7,791,251.42x = 45,790,486,084,008.05
  5. Step 5: Solve for x
    x = 45,790,486,084,008.05/7,791,251.42
  6. Step 6: Final answer
    x = 5,877,167.04

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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.