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Finding the Fourth Proportional to 61,561.96, 84,947.32 and 34,705.60

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Solution

The fourth proportional to 61,561.96, 84,947.32 and 34,705.60 is: 47,889.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,561.96 : 84,947.32 = 34,705.60 : x
  2. Step 2: Convert to fraction form
    61,561.96/84,947.32 = 34,705.60/x
  3. Step 3: Cross multiply
    61,561.96x = 84,947.32 × 34,705.60
  4. Step 4: Simplify right side
    61,561.96x = 2,948,147,708.99
  5. Step 5: Solve for x
    x = 2,948,147,708.99/61,561.96
  6. Step 6: Final answer
    x = 47,889.11

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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.