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Finding the Fourth Proportional to 27,578.93, 38,066.93 and 18,020.21

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Solution

The fourth proportional to 27,578.93, 38,066.93 and 18,020.21 is: 24,873.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,578.93 : 38,066.93 = 18,020.21 : x
  2. Step 2: Convert to fraction form
    27,578.93/38,066.93 = 18,020.21/x
  3. Step 3: Cross multiply
    27,578.93x = 38,066.93 × 18,020.21
  4. Step 4: Simplify right side
    27,578.93x = 685,974,212.87
  5. Step 5: Solve for x
    x = 685,974,212.87/27,578.93
  6. Step 6: Final answer
    x = 24,873.13

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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.