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Finding the Fourth Proportional to 45,886.73, 68,855.18 and 17,807.90

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Solution

The fourth proportional to 45,886.73, 68,855.18 and 17,807.90 is: 26,721.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,886.73 : 68,855.18 = 17,807.90 : x
  2. Step 2: Convert to fraction form
    45,886.73/68,855.18 = 17,807.90/x
  3. Step 3: Cross multiply
    45,886.73x = 68,855.18 × 17,807.90
  4. Step 4: Simplify right side
    45,886.73x = 1,226,165,726.61
  5. Step 5: Solve for x
    x = 1,226,165,726.61/45,886.73
  6. Step 6: Final answer
    x = 26,721.58

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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.