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Finding the Fourth Proportional to 61,638.96, 85,061.16 and 33,344.04

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Solution

The fourth proportional to 61,638.96, 85,061.16 and 33,344.04 is: 46,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,638.96 : 85,061.16 = 33,344.04 : x
  2. Step 2: Convert to fraction form
    61,638.96/85,061.16 = 33,344.04/x
  3. Step 3: Cross multiply
    61,638.96x = 85,061.16 × 33,344.04
  4. Step 4: Simplify right side
    61,638.96x = 2,836,282,721.49
  5. Step 5: Solve for x
    x = 2,836,282,721.49/61,638.96
  6. Step 6: Final answer
    x = 46,014.45

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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.