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Finding the Fourth Proportional to 17,798.88, 26,697.40 and 5,319.01

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Solution

The fourth proportional to 17,798.88, 26,697.40 and 5,319.01 is: 7,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,798.88 : 26,697.40 = 5,319.01 : x
  2. Step 2: Convert to fraction form
    17,798.88/26,697.40 = 5,319.01/x
  3. Step 3: Cross multiply
    17,798.88x = 26,697.40 × 5,319.01
  4. Step 4: Simplify right side
    17,798.88x = 142,003,577.49
  5. Step 5: Solve for x
    x = 142,003,577.49/17,798.88
  6. Step 6: Final answer
    x = 7,978.23

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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.