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Finding the Fourth Proportional to 61,638.65, 85,061.17 and 33,344.34

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Solution

The fourth proportional to 61,638.65, 85,061.17 and 33,344.34 is: 46,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,638.65 : 85,061.17 = 33,344.34 : x
  2. Step 2: Convert to fraction form
    61,638.65/85,061.17 = 33,344.34/x
  3. Step 3: Cross multiply
    61,638.65x = 85,061.17 × 33,344.34
  4. Step 4: Simplify right side
    61,638.65x = 2,836,308,573.28
  5. Step 5: Solve for x
    x = 2,836,308,573.28/61,638.65
  6. Step 6: Final answer
    x = 46,015.10

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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.