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Finding the Fourth Proportional to 62,216.72, 85,827.84 and 39,518.68

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Solution

The fourth proportional to 62,216.72, 85,827.84 and 39,518.68 is: 54,515.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,216.72 : 85,827.84 = 39,518.68 : x
  2. Step 2: Convert to fraction form
    62,216.72/85,827.84 = 39,518.68/x
  3. Step 3: Cross multiply
    62,216.72x = 85,827.84 × 39,518.68
  4. Step 4: Simplify right side
    62,216.72x = 3,391,802,944.05
  5. Step 5: Solve for x
    x = 3,391,802,944.05/62,216.72
  6. Step 6: Final answer
    x = 54,515.94

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1.5x scale

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.