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Finding the Fourth Proportional to 7,136,525.76, 9,848,414.78 and 3,873,340.14

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Solution

The fourth proportional to 7,136,525.76, 9,848,414.78 and 3,873,340.14 is: 5,345,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136,525.76 : 9,848,414.78 = 3,873,340.14 : x
  2. Step 2: Convert to fraction form
    7,136,525.76/9,848,414.78 = 3,873,340.14/x
  3. Step 3: Cross multiply
    7,136,525.76x = 9,848,414.78 × 3,873,340.14
  4. Step 4: Simplify right side
    7,136,525.76x = 38,146,260,282,743.27
  5. Step 5: Solve for x
    x = 38,146,260,282,743.27/7,136,525.76
  6. Step 6: Final answer
    x = 5,345,214.40

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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.