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Finding the Fourth Proportional to 61,938.38, 85,474.58 and 33,643.82

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Solution

The fourth proportional to 61,938.38, 85,474.58 and 33,643.82 is: 46,428.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,938.38 : 85,474.58 = 33,643.82 : x
  2. Step 2: Convert to fraction form
    61,938.38/85,474.58 = 33,643.82/x
  3. Step 3: Cross multiply
    61,938.38x = 85,474.58 × 33,643.82
  4. Step 4: Simplify right side
    61,938.38x = 2,875,691,384.10
  5. Step 5: Solve for x
    x = 2,875,691,384.10/61,938.38
  6. Step 6: Final answer
    x = 46,428.26

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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.