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Finding the Fourth Proportional to 38,341.92, 52,911.81 and 21,574.92

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Solution

The fourth proportional to 38,341.92, 52,911.81 and 21,574.92 is: 29,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,341.92 : 52,911.81 = 21,574.92 : x
  2. Step 2: Convert to fraction form
    38,341.92/52,911.81 = 21,574.92/x
  3. Step 3: Cross multiply
    38,341.92x = 52,911.81 × 21,574.92
  4. Step 4: Simplify right side
    38,341.92x = 1,141,568,067.81
  5. Step 5: Solve for x
    x = 1,141,568,067.81/38,341.92
  6. Step 6: Final answer
    x = 29,773.37

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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.