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Finding the Fourth Proportional to 62,774.56, 94,151.49 and 20,655.19

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Solution

The fourth proportional to 62,774.56, 94,151.49 and 20,655.19 is: 30,979.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,774.56 : 94,151.49 = 20,655.19 : x
  2. Step 2: Convert to fraction form
    62,774.56/94,151.49 = 20,655.19/x
  3. Step 3: Cross multiply
    62,774.56x = 94,151.49 × 20,655.19
  4. Step 4: Simplify right side
    62,774.56x = 1,944,716,914.73
  5. Step 5: Solve for x
    x = 1,944,716,914.73/62,774.56
  6. Step 6: Final answer
    x = 30,979.38

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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.