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Finding the Fourth Proportional to 19,757.36, 27,256.02 and 11,369

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Solution

The fourth proportional to 19,757.36, 27,256.02 and 11,369 is: 15,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,757.36 : 27,256.02 = 11,369 : x
  2. Step 2: Convert to fraction form
    19,757.36/27,256.02 = 11,369/x
  3. Step 3: Cross multiply
    19,757.36x = 27,256.02 × 11,369
  4. Step 4: Simplify right side
    19,757.36x = 309,873,691.38
  5. Step 5: Solve for x
    x = 309,873,691.38/19,757.36
  6. Step 6: Final answer
    x = 15,683.96

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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.