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Finding the Fourth Proportional to 8,374.64, 12,562.02 and 2,531.16

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Solution

The fourth proportional to 8,374.64, 12,562.02 and 2,531.16 is: 3,796.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.64 : 12,562.02 = 2,531.16 : x
  2. Step 2: Convert to fraction form
    8,374.64/12,562.02 = 2,531.16/x
  3. Step 3: Cross multiply
    8,374.64x = 12,562.02 × 2,531.16
  4. Step 4: Simplify right side
    8,374.64x = 31,796,482.54
  5. Step 5: Solve for x
    x = 31,796,482.54/8,374.64
  6. Step 6: Final answer
    x = 3,796.76

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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.