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Finding the Fourth Proportional to 32,687.71, 45,106.28 and 18,344.63

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Solution

The fourth proportional to 32,687.71, 45,106.28 and 18,344.63 is: 25,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,687.71 : 45,106.28 = 18,344.63 : x
  2. Step 2: Convert to fraction form
    32,687.71/45,106.28 = 18,344.63/x
  3. Step 3: Cross multiply
    32,687.71x = 45,106.28 × 18,344.63
  4. Step 4: Simplify right side
    32,687.71x = 827,458,175.90
  5. Step 5: Solve for x
    x = 827,458,175.90/32,687.71
  6. Step 6: Final answer
    x = 25,314.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.