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Finding the Fourth Proportional to 6,646,660.90, 9,965,998.53 and 2,598,327.07

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Solution

The fourth proportional to 6,646,660.90, 9,965,998.53 and 2,598,327.07 is: 3,895,929.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646,660.90 : 9,965,998.53 = 2,598,327.07 : x
  2. Step 2: Convert to fraction form
    6,646,660.90/9,965,998.53 = 2,598,327.07/x
  3. Step 3: Cross multiply
    6,646,660.90x = 9,965,998.53 × 2,598,327.07
  4. Step 4: Simplify right side
    6,646,660.90x = 25,894,923,760,079.20
  5. Step 5: Solve for x
    x = 25,894,923,760,079.20/6,646,660.90
  6. Step 6: Final answer
    x = 3,895,929.72

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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.