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Finding the Fourth Proportional to 19,213.61, 26,517.38 and 11,259

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Solution

The fourth proportional to 19,213.61, 26,517.38 and 11,259 is: 15,538.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.61 : 26,517.38 = 11,259 : x
  2. Step 2: Convert to fraction form
    19,213.61/26,517.38 = 11,259/x
  3. Step 3: Cross multiply
    19,213.61x = 26,517.38 × 11,259
  4. Step 4: Simplify right side
    19,213.61x = 298,559,125.13
  5. Step 5: Solve for x
    x = 298,559,125.13/19,213.61
  6. Step 6: Final answer
    x = 15,538.94

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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.