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Finding the Fourth Proportional to 57,394.53, 86,089.41 and 19,963.08

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Solution

The fourth proportional to 57,394.53, 86,089.41 and 19,963.08 is: 29,943.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,394.53 : 86,089.41 = 19,963.08 : x
  2. Step 2: Convert to fraction form
    57,394.53/86,089.41 = 19,963.08/x
  3. Step 3: Cross multiply
    57,394.53x = 86,089.41 × 19,963.08
  4. Step 4: Simplify right side
    57,394.53x = 1,718,609,778.98
  5. Step 5: Solve for x
    x = 1,718,609,778.98/57,394.53
  6. Step 6: Final answer
    x = 29,943.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.