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Finding the Fourth Proportional to 5,724.72, 8,595.72 and 3,388.68

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Solution

The fourth proportional to 5,724.72, 8,595.72 and 3,388.68 is: 5,088.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,724.72 : 8,595.72 = 3,388.68 : x
  2. Step 2: Convert to fraction form
    5,724.72/8,595.72 = 3,388.68/x
  3. Step 3: Cross multiply
    5,724.72x = 8,595.72 × 3,388.68
  4. Step 4: Simplify right side
    5,724.72x = 29,128,144.45
  5. Step 5: Solve for x
    x = 29,128,144.45/5,724.72
  6. Step 6: Final answer
    x = 5,088.13

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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.