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Finding the Fourth Proportional to 61,687.68, 92,534.82 and 19,570.96

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Solution

The fourth proportional to 61,687.68, 92,534.82 and 19,570.96 is: 29,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,687.68 : 92,534.82 = 19,570.96 : x
  2. Step 2: Convert to fraction form
    61,687.68/92,534.82 = 19,570.96/x
  3. Step 3: Cross multiply
    61,687.68x = 92,534.82 × 19,570.96
  4. Step 4: Simplify right side
    61,687.68x = 1,810,995,260.83
  5. Step 5: Solve for x
    x = 1,810,995,260.83/61,687.68
  6. Step 6: Final answer
    x = 29,357.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.