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Finding the Fourth Proportional to 7,982,513.52, 11,978,494.92 and 2,937,366.96

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Solution

The fourth proportional to 7,982,513.52, 11,978,494.92 and 2,937,366.96 is: 4,407,788.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982,513.52 : 11,978,494.92 = 2,937,366.96 : x
  2. Step 2: Convert to fraction form
    7,982,513.52/11,978,494.92 = 2,937,366.96/x
  3. Step 3: Cross multiply
    7,982,513.52x = 11,978,494.92 × 2,937,366.96
  4. Step 4: Simplify right side
    7,982,513.52x = 35,185,235,208,535.84
  5. Step 5: Solve for x
    x = 35,185,235,208,535.84/7,982,513.52
  6. Step 6: Final answer
    x = 4,407,788.99

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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.