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Finding the Fourth Proportional to 8,593.76, 12,889.92 and 3,398.24

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Solution

The fourth proportional to 8,593.76, 12,889.92 and 3,398.24 is: 5,097.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,593.76 : 12,889.92 = 3,398.24 : x
  2. Step 2: Convert to fraction form
    8,593.76/12,889.92 = 3,398.24/x
  3. Step 3: Cross multiply
    8,593.76x = 12,889.92 × 3,398.24
  4. Step 4: Simplify right side
    8,593.76x = 43,803,041.74
  5. Step 5: Solve for x
    x = 43,803,041.74/8,593.76
  6. Step 6: Final answer
    x = 5,097.08

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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.