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Finding the Fourth Proportional to 7,889,744.30, 11,834,616.45 and 5,202,358.70

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Solution

The fourth proportional to 7,889,744.30, 11,834,616.45 and 5,202,358.70 is: 7,803,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889,744.30 : 11,834,616.45 = 5,202,358.70 : x
  2. Step 2: Convert to fraction form
    7,889,744.30/11,834,616.45 = 5,202,358.70/x
  3. Step 3: Cross multiply
    7,889,744.30x = 11,834,616.45 × 5,202,358.70
  4. Step 4: Simplify right side
    7,889,744.30x = 61,567,919,849,820.62
  5. Step 5: Solve for x
    x = 61,567,919,849,820.62/7,889,744.30
  6. Step 6: Final answer
    x = 7,803,538.05

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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.