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Finding the Fourth Proportional to 61,882.82, 92,809.35 and 28,570.88

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Solution

The fourth proportional to 61,882.82, 92,809.35 and 28,570.88 is: 42,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,882.82 : 92,809.35 = 28,570.88 : x
  2. Step 2: Convert to fraction form
    61,882.82/92,809.35 = 28,570.88/x
  3. Step 3: Cross multiply
    61,882.82x = 92,809.35 × 28,570.88
  4. Step 4: Simplify right side
    61,882.82x = 2,651,644,801.73
  5. Step 5: Solve for x
    x = 2,651,644,801.73/61,882.82
  6. Step 6: Final answer
    x = 42,849.45

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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.