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Finding the Fourth Proportional to 13,398.66, 18,492.27 and 8,094.24

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Solution

The fourth proportional to 13,398.66, 18,492.27 and 8,094.24 is: 11,171.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.66 : 18,492.27 = 8,094.24 : x
  2. Step 2: Convert to fraction form
    13,398.66/18,492.27 = 8,094.24/x
  3. Step 3: Cross multiply
    13,398.66x = 18,492.27 × 8,094.24
  4. Step 4: Simplify right side
    13,398.66x = 149,680,871.52
  5. Step 5: Solve for x
    x = 149,680,871.52/13,398.66
  6. Step 6: Final answer
    x = 11,171.33

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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.