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Finding the Fourth Proportional to 8,872.36, 12,244.62 and 5,335

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Solution

The fourth proportional to 8,872.36, 12,244.62 and 5,335 is: 7,362.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.36 : 12,244.62 = 5,335 : x
  2. Step 2: Convert to fraction form
    8,872.36/12,244.62 = 5,335/x
  3. Step 3: Cross multiply
    8,872.36x = 12,244.62 × 5,335
  4. Step 4: Simplify right side
    8,872.36x = 65,325,047.70
  5. Step 5: Solve for x
    x = 65,325,047.70/8,872.36
  6. Step 6: Final answer
    x = 7,362.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.