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Finding the Fourth Proportional to 61,608.47, 85,019.66 and 33,314.15

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Solution

The fourth proportional to 61,608.47, 85,019.66 and 33,314.15 is: 45,973.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,608.47 : 85,019.66 = 33,314.15 : x
  2. Step 2: Convert to fraction form
    61,608.47/85,019.66 = 33,314.15/x
  3. Step 3: Cross multiply
    61,608.47x = 85,019.66 × 33,314.15
  4. Step 4: Simplify right side
    61,608.47x = 2,832,357,877.10
  5. Step 5: Solve for x
    x = 2,832,357,877.10/61,608.47
  6. Step 6: Final answer
    x = 45,973.52

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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.