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Finding the Fourth Proportional to 8,558.34, 12,838.32 and 3,363

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Solution

The fourth proportional to 8,558.34, 12,838.32 and 3,363 is: 5,044.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.34 : 12,838.32 = 3,363 : x
  2. Step 2: Convert to fraction form
    8,558.34/12,838.32 = 3,363/x
  3. Step 3: Cross multiply
    8,558.34x = 12,838.32 × 3,363
  4. Step 4: Simplify right side
    8,558.34x = 43,175,270.16
  5. Step 5: Solve for x
    x = 43,175,270.16/8,558.34
  6. Step 6: Final answer
    x = 5,044.82

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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.