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Finding the Fourth Proportional to 61,608.26, 85,019.33 and 33,313.88

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Solution

The fourth proportional to 61,608.26, 85,019.33 and 33,313.88 is: 45,973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,608.26 : 85,019.33 = 33,313.88 : x
  2. Step 2: Convert to fraction form
    61,608.26/85,019.33 = 33,313.88/x
  3. Step 3: Cross multiply
    61,608.26x = 85,019.33 × 33,313.88
  4. Step 4: Simplify right side
    61,608.26x = 2,832,323,165.63
  5. Step 5: Solve for x
    x = 2,832,323,165.63/61,608.26
  6. Step 6: Final answer
    x = 45,973.11

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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.