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Finding the Fourth Proportional to 17,895.78, 26,802.78 and 8,542.38

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Solution

The fourth proportional to 17,895.78, 26,802.78 and 8,542.38 is: 12,794.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,895.78 : 26,802.78 = 8,542.38 : x
  2. Step 2: Convert to fraction form
    17,895.78/26,802.78 = 8,542.38/x
  3. Step 3: Cross multiply
    17,895.78x = 26,802.78 × 8,542.38
  4. Step 4: Simplify right side
    17,895.78x = 228,959,531.82
  5. Step 5: Solve for x
    x = 228,959,531.82/17,895.78
  6. Step 6: Final answer
    x = 12,794.05

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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.