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Finding the Fourth Proportional to 6,387,651.57, 9,582,987.47 and 2,069,694.57

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Solution

The fourth proportional to 6,387,651.57, 9,582,987.47 and 2,069,694.57 is: 3,105,031.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,387,651.57 : 9,582,987.47 = 2,069,694.57 : x
  2. Step 2: Convert to fraction form
    6,387,651.57/9,582,987.47 = 2,069,694.57/x
  3. Step 3: Cross multiply
    6,387,651.57x = 9,582,987.47 × 2,069,694.57
  4. Step 4: Simplify right side
    6,387,651.57x = 19,833,857,120,688.57
  5. Step 5: Solve for x
    x = 19,833,857,120,688.57/6,387,651.57
  6. Step 6: Final answer
    x = 3,105,031.15

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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.