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Finding the Fourth Proportional to 10,512.91, 14,492.73 and 8,270.91

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Solution

The fourth proportional to 10,512.91, 14,492.73 and 8,270.91 is: 11,401.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.91 : 14,492.73 = 8,270.91 : x
  2. Step 2: Convert to fraction form
    10,512.91/14,492.73 = 8,270.91/x
  3. Step 3: Cross multiply
    10,512.91x = 14,492.73 × 8,270.91
  4. Step 4: Simplify right side
    10,512.91x = 119,868,065.48
  5. Step 5: Solve for x
    x = 119,868,065.48/10,512.91
  6. Step 6: Final answer
    x = 11,401.99

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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.