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Finding the Fourth Proportional to 6,750,509.63, 9,315,703.28 and 3,694,723.88

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Solution

The fourth proportional to 6,750,509.63, 9,315,703.28 and 3,694,723.88 is: 5,098,718.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750,509.63 : 9,315,703.28 = 3,694,723.88 : x
  2. Step 2: Convert to fraction form
    6,750,509.63/9,315,703.28 = 3,694,723.88/x
  3. Step 3: Cross multiply
    6,750,509.63x = 9,315,703.28 × 3,694,723.88
  4. Step 4: Simplify right side
    6,750,509.63x = 34,418,951,330,268.62
  5. Step 5: Solve for x
    x = 34,418,951,330,268.62/6,750,509.63
  6. Step 6: Final answer
    x = 5,098,718.95

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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.