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Finding the Fourth Proportional to 6,749,718.76, 9,314,487.42 and 3,693,871.72

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Solution

The fourth proportional to 6,749,718.76, 9,314,487.42 and 3,693,871.72 is: 5,097,474.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,749,718.76 : 9,314,487.42 = 3,693,871.72 : x
  2. Step 2: Convert to fraction form
    6,749,718.76/9,314,487.42 = 3,693,871.72/x
  3. Step 3: Cross multiply
    6,749,718.76x = 9,314,487.42 × 3,693,871.72
  4. Step 4: Simplify right side
    6,749,718.76x = 34,406,521,667,033.77
  5. Step 5: Solve for x
    x = 34,406,521,667,033.77/6,749,718.76
  6. Step 6: Final answer
    x = 5,097,474.86

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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.