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Finding the Fourth Proportional to 61,947.17, 85,479.83 and 36,447.93

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Solution

The fourth proportional to 61,947.17, 85,479.83 and 36,447.93 is: 50,293.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,947.17 : 85,479.83 = 36,447.93 : x
  2. Step 2: Convert to fraction form
    61,947.17/85,479.83 = 36,447.93/x
  3. Step 3: Cross multiply
    61,947.17x = 85,479.83 × 36,447.93
  4. Step 4: Simplify right side
    61,947.17x = 3,115,562,678.01
  5. Step 5: Solve for x
    x = 3,115,562,678.01/61,947.17
  6. Step 6: Final answer
    x = 50,293.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.