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Finding the Fourth Proportional to 3,867.58, 5,331.03 and 3,026.93

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Solution

The fourth proportional to 3,867.58, 5,331.03 and 3,026.93 is: 4,172.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.58 : 5,331.03 = 3,026.93 : x
  2. Step 2: Convert to fraction form
    3,867.58/5,331.03 = 3,026.93/x
  3. Step 3: Cross multiply
    3,867.58x = 5,331.03 × 3,026.93
  4. Step 4: Simplify right side
    3,867.58x = 16,136,654.64
  5. Step 5: Solve for x
    x = 16,136,654.64/3,867.58
  6. Step 6: Final answer
    x = 4,172.29

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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.