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Finding the Fourth Proportional to 61,675.52, 85,112.36 and 33,381.40

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Solution

The fourth proportional to 61,675.52, 85,112.36 and 33,381.40 is: 46,066.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,675.52 : 85,112.36 = 33,381.40 : x
  2. Step 2: Convert to fraction form
    61,675.52/85,112.36 = 33,381.40/x
  3. Step 3: Cross multiply
    61,675.52x = 85,112.36 × 33,381.40
  4. Step 4: Simplify right side
    61,675.52x = 2,841,169,734.10
  5. Step 5: Solve for x
    x = 2,841,169,734.10/61,675.52
  6. Step 6: Final answer
    x = 46,066.41

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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.