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Finding the Fourth Proportional to 12,492.76, 17,234.82 and 8,015.56

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Solution

The fourth proportional to 12,492.76, 17,234.82 and 8,015.56 is: 11,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.76 : 17,234.82 = 8,015.56 : x
  2. Step 2: Convert to fraction form
    12,492.76/17,234.82 = 8,015.56/x
  3. Step 3: Cross multiply
    12,492.76x = 17,234.82 × 8,015.56
  4. Step 4: Simplify right side
    12,492.76x = 138,146,733.80
  5. Step 5: Solve for x
    x = 138,146,733.80/12,492.76
  6. Step 6: Final answer
    x = 11,058.14

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1.5x scale

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.