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Finding the Fourth Proportional to 65,984,438.97, 91,060,613.91 and 38,106,644.87

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Solution

The fourth proportional to 65,984,438.97, 91,060,613.91 and 38,106,644.87 is: 52,588,375.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,984,438.97 : 91,060,613.91 = 38,106,644.87 : x
  2. Step 2: Convert to fraction form
    65,984,438.97/91,060,613.91 = 38,106,644.87/x
  3. Step 3: Cross multiply
    65,984,438.97x = 91,060,613.91 × 38,106,644.87
  4. Step 4: Simplify right side
    65,984,438.97x = 3,470,014,476,140,204
  5. Step 5: Solve for x
    x = 3,470,014,476,140,204/65,984,438.97
  6. Step 6: Final answer
    x = 52,588,375.84

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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.