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Finding the Fourth Proportional to 6,642,001.90, 9,942,007.65 and 4,752,433.90

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Solution

The fourth proportional to 6,642,001.90, 9,942,007.65 and 4,752,433.90 is: 7,113,628.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,001.90 : 9,942,007.65 = 4,752,433.90 : x
  2. Step 2: Convert to fraction form
    6,642,001.90/9,942,007.65 = 4,752,433.90/x
  3. Step 3: Cross multiply
    6,642,001.90x = 9,942,007.65 × 4,752,433.90
  4. Step 4: Simplify right side
    6,642,001.90x = 47,248,734,189,919.34
  5. Step 5: Solve for x
    x = 47,248,734,189,919.34/6,642,001.90
  6. Step 6: Final answer
    x = 7,113,628.53

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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.