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Finding the Fourth Proportional to 39,438.98, 59,158.48 and 11,736.98

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Solution

The fourth proportional to 39,438.98, 59,158.48 and 11,736.98 is: 17,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,438.98 : 59,158.48 = 11,736.98 : x
  2. Step 2: Convert to fraction form
    39,438.98/59,158.48 = 11,736.98/x
  3. Step 3: Cross multiply
    39,438.98x = 59,158.48 × 11,736.98
  4. Step 4: Simplify right side
    39,438.98x = 694,342,115.06
  5. Step 5: Solve for x
    x = 694,342,115.06/39,438.98
  6. Step 6: Final answer
    x = 17,605.48

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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.