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Finding the Fourth Proportional to 61,391.25, 84,720.33 and 34,533.54

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Solution

The fourth proportional to 61,391.25, 84,720.33 and 34,533.54 is: 47,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,391.25 : 84,720.33 = 34,533.54 : x
  2. Step 2: Convert to fraction form
    61,391.25/84,720.33 = 34,533.54/x
  3. Step 3: Cross multiply
    61,391.25x = 84,720.33 × 34,533.54
  4. Step 4: Simplify right side
    61,391.25x = 2,925,692,904.87
  5. Step 5: Solve for x
    x = 2,925,692,904.87/61,391.25
  6. Step 6: Final answer
    x = 47,656.51

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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.