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Finding the Fourth Proportional to 15,214.82, 22,803.38 and 8,621.01

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Solution

The fourth proportional to 15,214.82, 22,803.38 and 8,621.01 is: 12,920.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,214.82 : 22,803.38 = 8,621.01 : x
  2. Step 2: Convert to fraction form
    15,214.82/22,803.38 = 8,621.01/x
  3. Step 3: Cross multiply
    15,214.82x = 22,803.38 × 8,621.01
  4. Step 4: Simplify right side
    15,214.82x = 196,588,188.57
  5. Step 5: Solve for x
    x = 196,588,188.57/15,214.82
  6. Step 6: Final answer
    x = 12,920.84

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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.