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Finding the Fourth Proportional to 45,872.57, 68,808.95 and 12,593.09

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Solution

The fourth proportional to 45,872.57, 68,808.95 and 12,593.09 is: 18,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,872.57 : 68,808.95 = 12,593.09 : x
  2. Step 2: Convert to fraction form
    45,872.57/68,808.95 = 12,593.09/x
  3. Step 3: Cross multiply
    45,872.57x = 68,808.95 × 12,593.09
  4. Step 4: Simplify right side
    45,872.57x = 866,516,987.59
  5. Step 5: Solve for x
    x = 866,516,987.59/45,872.57
  6. Step 6: Final answer
    x = 18,889.66

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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.