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Finding the Fourth Proportional to 19,494.64, 29,254.47 and 19,336.11

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Solution

The fourth proportional to 19,494.64, 29,254.47 and 19,336.11 is: 29,016.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,494.64 : 29,254.47 = 19,336.11 : x
  2. Step 2: Convert to fraction form
    19,494.64/29,254.47 = 19,336.11/x
  3. Step 3: Cross multiply
    19,494.64x = 29,254.47 × 19,336.11
  4. Step 4: Simplify right side
    19,494.64x = 565,667,649.91
  5. Step 5: Solve for x
    x = 565,667,649.91/19,494.64
  6. Step 6: Final answer
    x = 29,016.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.