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Finding the Fourth Proportional to 16,650,871.28, 24,978,998.76 and 5,133,642.68

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Solution

The fourth proportional to 16,650,871.28, 24,978,998.76 and 5,133,642.68 is: 7,701,293.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,650,871.28 : 24,978,998.76 = 5,133,642.68 : x
  2. Step 2: Convert to fraction form
    16,650,871.28/24,978,998.76 = 5,133,642.68/x
  3. Step 3: Cross multiply
    16,650,871.28x = 24,978,998.76 × 5,133,642.68
  4. Step 4: Simplify right side
    16,650,871.28x = 128,233,253,987,439.86
  5. Step 5: Solve for x
    x = 128,233,253,987,439.86/16,650,871.28
  6. Step 6: Final answer
    x = 7,701,293.93

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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.