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Finding the Fourth Proportional to 49,951.50, 74,927.25 and 13,015.50

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Solution

The fourth proportional to 49,951.50, 74,927.25 and 13,015.50 is: 19,523.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,951.50 : 74,927.25 = 13,015.50 : x
  2. Step 2: Convert to fraction form
    49,951.50/74,927.25 = 13,015.50/x
  3. Step 3: Cross multiply
    49,951.50x = 74,927.25 × 13,015.50
  4. Step 4: Simplify right side
    49,951.50x = 975,215,622.38
  5. Step 5: Solve for x
    x = 975,215,622.38/49,951.50
  6. Step 6: Final answer
    x = 19,523.25

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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.