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Finding the Fourth Proportional to 18,856.42, 26,034.03 and 11,693.94

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Solution

The fourth proportional to 18,856.42, 26,034.03 and 11,693.94 is: 16,145.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,856.42 : 26,034.03 = 11,693.94 : x
  2. Step 2: Convert to fraction form
    18,856.42/26,034.03 = 11,693.94/x
  3. Step 3: Cross multiply
    18,856.42x = 26,034.03 × 11,693.94
  4. Step 4: Simplify right side
    18,856.42x = 304,440,539.70
  5. Step 5: Solve for x
    x = 304,440,539.70/18,856.42
  6. Step 6: Final answer
    x = 16,145.19

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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.