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Finding the Fourth Proportional to 12,593.70, 18,878.23 and 4,690.42

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Solution

The fourth proportional to 12,593.70, 18,878.23 and 4,690.42 is: 7,031.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.70 : 18,878.23 = 4,690.42 : x
  2. Step 2: Convert to fraction form
    12,593.70/18,878.23 = 4,690.42/x
  3. Step 3: Cross multiply
    12,593.70x = 18,878.23 × 4,690.42
  4. Step 4: Simplify right side
    12,593.70x = 88,546,827.56
  5. Step 5: Solve for x
    x = 88,546,827.56/12,593.70
  6. Step 6: Final answer
    x = 7,031.04

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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.