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Finding the Fourth Proportional to 71,050.87, 98,044.51 and 39,215.44

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Solution

The fourth proportional to 71,050.87, 98,044.51 and 39,215.44 is: 54,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,050.87 : 98,044.51 = 39,215.44 : x
  2. Step 2: Convert to fraction form
    71,050.87/98,044.51 = 39,215.44/x
  3. Step 3: Cross multiply
    71,050.87x = 98,044.51 × 39,215.44
  4. Step 4: Simplify right side
    71,050.87x = 3,844,857,912.93
  5. Step 5: Solve for x
    x = 3,844,857,912.93/71,050.87
  6. Step 6: Final answer
    x = 54,114.16

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1.5x scale

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.