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Finding the Fourth Proportional to 18,320.61, 27,482.46 and 5,842.41

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Solution

The fourth proportional to 18,320.61, 27,482.46 and 5,842.41 is: 8,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.61 : 27,482.46 = 5,842.41 : x
  2. Step 2: Convert to fraction form
    18,320.61/27,482.46 = 5,842.41/x
  3. Step 3: Cross multiply
    18,320.61x = 27,482.46 × 5,842.41
  4. Step 4: Simplify right side
    18,320.61x = 160,563,799.13
  5. Step 5: Solve for x
    x = 160,563,799.13/18,320.61
  6. Step 6: Final answer
    x = 8,764.11

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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.