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Finding the Fourth Proportional to 19,492.68, 26,892.90 and 11,104.32

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Solution

The fourth proportional to 19,492.68, 26,892.90 and 11,104.32 is: 15,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,492.68 : 26,892.90 = 11,104.32 : x
  2. Step 2: Convert to fraction form
    19,492.68/26,892.90 = 11,104.32/x
  3. Step 3: Cross multiply
    19,492.68x = 26,892.90 × 11,104.32
  4. Step 4: Simplify right side
    19,492.68x = 298,627,367.33
  5. Step 5: Solve for x
    x = 298,627,367.33/19,492.68
  6. Step 6: Final answer
    x = 15,319.97

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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.