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Finding the Fourth Proportional to 19,892.72, 29,838.29 and 6,745.11

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Solution

The fourth proportional to 19,892.72, 29,838.29 and 6,745.11 is: 10,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,892.72 : 29,838.29 = 6,745.11 : x
  2. Step 2: Convert to fraction form
    19,892.72/29,838.29 = 6,745.11/x
  3. Step 3: Cross multiply
    19,892.72x = 29,838.29 × 6,745.11
  4. Step 4: Simplify right side
    19,892.72x = 201,262,514.54
  5. Step 5: Solve for x
    x = 201,262,514.54/19,892.72
  6. Step 6: Final answer
    x = 10,117.40

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1.5x scale

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.