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Finding the Fourth Proportional to 7,151,907.82, 9,869,557.91 and 5,324,538.10

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Solution

The fourth proportional to 7,151,907.82, 9,869,557.91 and 5,324,538.10 is: 7,347,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151,907.82 : 9,869,557.91 = 5,324,538.10 : x
  2. Step 2: Convert to fraction form
    7,151,907.82/9,869,557.91 = 5,324,538.10/x
  3. Step 3: Cross multiply
    7,151,907.82x = 9,869,557.91 × 5,324,538.10
  4. Step 4: Simplify right side
    7,151,907.82x = 52,550,837,110,588.82
  5. Step 5: Solve for x
    x = 52,550,837,110,588.82/7,151,907.82
  6. Step 6: Final answer
    x = 7,347,806.83

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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.