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Finding the Fourth Proportional to 39,474, 59,240.12 and 18,697.52

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Solution

The fourth proportional to 39,474, 59,240.12 and 18,697.52 is: 28,060.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,474 : 59,240.12 = 18,697.52 : x
  2. Step 2: Convert to fraction form
    39,474/59,240.12 = 18,697.52/x
  3. Step 3: Cross multiply
    39,474x = 59,240.12 × 18,697.52
  4. Step 4: Simplify right side
    39,474x = 1,107,643,328.50
  5. Step 5: Solve for x
    x = 1,107,643,328.50/39,474
  6. Step 6: Final answer
    x = 28,060.07

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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.