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Finding the Fourth Proportional to 70,860.67, 97,792.16 and 39,029.56

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Solution

The fourth proportional to 70,860.67, 97,792.16 and 39,029.56 is: 53,863.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,860.67 : 97,792.16 = 39,029.56 : x
  2. Step 2: Convert to fraction form
    70,860.67/97,792.16 = 39,029.56/x
  3. Step 3: Cross multiply
    70,860.67x = 97,792.16 × 39,029.56
  4. Step 4: Simplify right side
    70,860.67x = 3,816,784,976.25
  5. Step 5: Solve for x
    x = 3,816,784,976.25/70,860.67
  6. Step 6: Final answer
    x = 53,863.24

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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.