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Finding the Fourth Proportional to 61,808.38, 92,681.90 and 19,682.97

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Solution

The fourth proportional to 61,808.38, 92,681.90 and 19,682.97 is: 29,514.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808.38 : 92,681.90 = 19,682.97 : x
  2. Step 2: Convert to fraction form
    61,808.38/92,681.90 = 19,682.97/x
  3. Step 3: Cross multiply
    61,808.38x = 92,681.90 × 19,682.97
  4. Step 4: Simplify right side
    61,808.38x = 1,824,255,261.78
  5. Step 5: Solve for x
    x = 1,824,255,261.78/61,808.38
  6. Step 6: Final answer
    x = 29,514.69

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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.