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Finding the Fourth Proportional to 17,698.78, 26,551.96 and 5,851.92

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Solution

The fourth proportional to 17,698.78, 26,551.96 and 5,851.92 is: 8,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,698.78 : 26,551.96 = 5,851.92 : x
  2. Step 2: Convert to fraction form
    17,698.78/26,551.96 = 5,851.92/x
  3. Step 3: Cross multiply
    17,698.78x = 26,551.96 × 5,851.92
  4. Step 4: Simplify right side
    17,698.78x = 155,379,945.76
  5. Step 5: Solve for x
    x = 155,379,945.76/17,698.78
  6. Step 6: Final answer
    x = 8,779.13

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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.