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Finding the Fourth Proportional to 7,066,648.38, 9,749,491.28 and 4,620,691.19

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Solution

The fourth proportional to 7,066,648.38, 9,749,491.28 and 4,620,691.19 is: 6,374,929.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,066,648.38 : 9,749,491.28 = 4,620,691.19 : x
  2. Step 2: Convert to fraction form
    7,066,648.38/9,749,491.28 = 4,620,691.19/x
  3. Step 3: Cross multiply
    7,066,648.38x = 9,749,491.28 × 4,620,691.19
  4. Step 4: Simplify right side
    7,066,648.38x = 45,049,388,392,626.91
  5. Step 5: Solve for x
    x = 45,049,388,392,626.91/7,066,648.38
  6. Step 6: Final answer
    x = 6,374,929.95

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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.