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Finding the Fourth Proportional to 5,752,691.52, 7,938,482.25 and 3,174,338.80

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Solution

The fourth proportional to 5,752,691.52, 7,938,482.25 and 3,174,338.80 is: 4,380,459.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,752,691.52 : 7,938,482.25 = 3,174,338.80 : x
  2. Step 2: Convert to fraction form
    5,752,691.52/7,938,482.25 = 3,174,338.80/x
  3. Step 3: Cross multiply
    5,752,691.52x = 7,938,482.25 × 3,174,338.80
  4. Step 4: Simplify right side
    5,752,691.52x = 25,199,432,219,286.30
  5. Step 5: Solve for x
    x = 25,199,432,219,286.30/5,752,691.52
  6. Step 6: Final answer
    x = 4,380,459.50

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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.