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Finding the Fourth Proportional to 39,473, 59,238.66 and 18,696.50

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Solution

The fourth proportional to 39,473, 59,238.66 and 18,696.50 is: 28,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,473 : 59,238.66 = 18,696.50 : x
  2. Step 2: Convert to fraction form
    39,473/59,238.66 = 18,696.50/x
  3. Step 3: Cross multiply
    39,473x = 59,238.66 × 18,696.50
  4. Step 4: Simplify right side
    39,473x = 1,107,555,606.69
  5. Step 5: Solve for x
    x = 1,107,555,606.69/39,473
  6. Step 6: Final answer
    x = 28,058.56

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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.