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Finding the Fourth Proportional to 8,291.71, 12,437.58 and 3,361.45

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Solution

The fourth proportional to 8,291.71, 12,437.58 and 3,361.45 is: 5,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.71 : 12,437.58 = 3,361.45 : x
  2. Step 2: Convert to fraction form
    8,291.71/12,437.58 = 3,361.45/x
  3. Step 3: Cross multiply
    8,291.71x = 12,437.58 × 3,361.45
  4. Step 4: Simplify right side
    8,291.71x = 41,808,303.29
  5. Step 5: Solve for x
    x = 41,808,303.29/8,291.71
  6. Step 6: Final answer
    x = 5,042.18

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1.5x scale

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.