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Finding the Fourth Proportional to 29,993.79, 41,391.74 and 16,565.38

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Solution

The fourth proportional to 29,993.79, 41,391.74 and 16,565.38 is: 22,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,993.79 : 41,391.74 = 16,565.38 : x
  2. Step 2: Convert to fraction form
    29,993.79/41,391.74 = 16,565.38/x
  3. Step 3: Cross multiply
    29,993.79x = 41,391.74 × 16,565.38
  4. Step 4: Simplify right side
    29,993.79x = 685,669,901.96
  5. Step 5: Solve for x
    x = 685,669,901.96/29,993.79
  6. Step 6: Final answer
    x = 22,860.40

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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.