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Finding the Fourth Proportional to 12,593.12, 18,889.99 and 5,571.64

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Solution

The fourth proportional to 12,593.12, 18,889.99 and 5,571.64 is: 8,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.12 : 18,889.99 = 5,571.64 : x
  2. Step 2: Convert to fraction form
    12,593.12/18,889.99 = 5,571.64/x
  3. Step 3: Cross multiply
    12,593.12x = 18,889.99 × 5,571.64
  4. Step 4: Simplify right side
    12,593.12x = 105,248,223.88
  5. Step 5: Solve for x
    x = 105,248,223.88/12,593.12
  6. Step 6: Final answer
    x = 8,357.60

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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.