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Finding the Fourth Proportional to 8,482.13, 12,724.61 and 2,637.57

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Solution

The fourth proportional to 8,482.13, 12,724.61 and 2,637.57 is: 3,956.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,482.13 : 12,724.61 = 2,637.57 : x
  2. Step 2: Convert to fraction form
    8,482.13/12,724.61 = 2,637.57/x
  3. Step 3: Cross multiply
    8,482.13x = 12,724.61 × 2,637.57
  4. Step 4: Simplify right side
    8,482.13x = 33,562,036.41
  5. Step 5: Solve for x
    x = 33,562,036.41/8,482.13
  6. Step 6: Final answer
    x = 3,956.80

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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.