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Finding the Fourth Proportional to 61,453.05, 84,813.29 and 34,600.79

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Solution

The fourth proportional to 61,453.05, 84,813.29 and 34,600.79 is: 47,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,453.05 : 84,813.29 = 34,600.79 : x
  2. Step 2: Convert to fraction form
    61,453.05/84,813.29 = 34,600.79/x
  3. Step 3: Cross multiply
    61,453.05x = 84,813.29 × 34,600.79
  4. Step 4: Simplify right side
    61,453.05x = 2,934,606,836.50
  5. Step 5: Solve for x
    x = 2,934,606,836.50/61,453.05
  6. Step 6: Final answer
    x = 47,753.64

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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.