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Finding the Fourth Proportional to 8,388.02, 12,583.32 and 2,543.24

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Solution

The fourth proportional to 8,388.02, 12,583.32 and 2,543.24 is: 3,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.02 : 12,583.32 = 2,543.24 : x
  2. Step 2: Convert to fraction form
    8,388.02/12,583.32 = 2,543.24/x
  3. Step 3: Cross multiply
    8,388.02x = 12,583.32 × 2,543.24
  4. Step 4: Simplify right side
    8,388.02x = 32,002,402.76
  5. Step 5: Solve for x
    x = 32,002,402.76/8,388.02
  6. Step 6: Final answer
    x = 3,815.25

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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.