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Finding the Fourth Proportional to 9,891,633.68, 13,650,890.04 and 5,481,347.36

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Solution

The fourth proportional to 9,891,633.68, 13,650,890.04 and 5,481,347.36 is: 7,564,500.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891,633.68 : 13,650,890.04 = 5,481,347.36 : x
  2. Step 2: Convert to fraction form
    9,891,633.68/13,650,890.04 = 5,481,347.36/x
  3. Step 3: Cross multiply
    9,891,633.68x = 13,650,890.04 × 5,481,347.36
  4. Step 4: Simplify right side
    9,891,633.68x = 74,825,270,082,404.30
  5. Step 5: Solve for x
    x = 74,825,270,082,404.30/9,891,633.68
  6. Step 6: Final answer
    x = 7,564,500.72

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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.