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Finding the Fourth Proportional to 17,798.96, 26,698.08 and 5,319.02

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Solution

The fourth proportional to 17,798.96, 26,698.08 and 5,319.02 is: 7,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,798.96 : 26,698.08 = 5,319.02 : x
  2. Step 2: Convert to fraction form
    17,798.96/26,698.08 = 5,319.02/x
  3. Step 3: Cross multiply
    17,798.96x = 26,698.08 × 5,319.02
  4. Step 4: Simplify right side
    17,798.96x = 142,007,621.48
  5. Step 5: Solve for x
    x = 142,007,621.48/17,798.96
  6. Step 6: Final answer
    x = 7,978.42

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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.