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Finding the Fourth Proportional to 44,115.66, 66,174.57 and 12,951.90

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Solution

The fourth proportional to 44,115.66, 66,174.57 and 12,951.90 is: 19,428.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,115.66 : 66,174.57 = 12,951.90 : x
  2. Step 2: Convert to fraction form
    44,115.66/66,174.57 = 12,951.90/x
  3. Step 3: Cross multiply
    44,115.66x = 66,174.57 × 12,951.90
  4. Step 4: Simplify right side
    44,115.66x = 857,086,413.18
  5. Step 5: Solve for x
    x = 857,086,413.18/44,115.66
  6. Step 6: Final answer
    x = 19,428.17

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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.