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Finding the Fourth Proportional to 27,859.78, 41,767.78 and 19,068.04

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Solution

The fourth proportional to 27,859.78, 41,767.78 and 19,068.04 is: 28,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,859.78 : 41,767.78 = 19,068.04 : x
  2. Step 2: Convert to fraction form
    27,859.78/41,767.78 = 19,068.04/x
  3. Step 3: Cross multiply
    27,859.78x = 41,767.78 × 19,068.04
  4. Step 4: Simplify right side
    27,859.78x = 796,429,699.75
  5. Step 5: Solve for x
    x = 796,429,699.75/27,859.78
  6. Step 6: Final answer
    x = 28,587.08

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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.