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Finding the Fourth Proportional to 61,538.46, 84,924.84 and 34,679.48

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Solution

The fourth proportional to 61,538.46, 84,924.84 and 34,679.48 is: 47,858.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,538.46 : 84,924.84 = 34,679.48 : x
  2. Step 2: Convert to fraction form
    61,538.46/84,924.84 = 34,679.48/x
  3. Step 3: Cross multiply
    61,538.46x = 84,924.84 × 34,679.48
  4. Step 4: Simplify right side
    61,538.46x = 2,945,149,290.28
  5. Step 5: Solve for x
    x = 2,945,149,290.28/61,538.46
  6. Step 6: Final answer
    x = 47,858.68

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1.5x scale

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.