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Finding the Fourth Proportional to 60,877.11, 83,942.04 and 39,338.49

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Solution

The fourth proportional to 60,877.11, 83,942.04 and 39,338.49 is: 54,242.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,877.11 : 83,942.04 = 39,338.49 : x
  2. Step 2: Convert to fraction form
    60,877.11/83,942.04 = 39,338.49/x
  3. Step 3: Cross multiply
    60,877.11x = 83,942.04 × 39,338.49
  4. Step 4: Simplify right side
    60,877.11x = 3,302,153,101.12
  5. Step 5: Solve for x
    x = 3,302,153,101.12/60,877.11
  6. Step 6: Final answer
    x = 54,242.93

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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.