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Finding the Fourth Proportional to 71,907.55, 107,864.57 and 27,522.79

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Solution

The fourth proportional to 71,907.55, 107,864.57 and 27,522.79 is: 41,285.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,907.55 : 107,864.57 = 27,522.79 : x
  2. Step 2: Convert to fraction form
    71,907.55/107,864.57 = 27,522.79/x
  3. Step 3: Cross multiply
    71,907.55x = 107,864.57 × 27,522.79
  4. Step 4: Simplify right side
    71,907.55x = 2,968,734,143.81
  5. Step 5: Solve for x
    x = 2,968,734,143.81/71,907.55
  6. Step 6: Final answer
    x = 41,285.43

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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.