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Finding the Fourth Proportional to 11,897.58, 17,850.96 and 5,319.12

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Solution

The fourth proportional to 11,897.58, 17,850.96 and 5,319.12 is: 7,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,897.58 : 17,850.96 = 5,319.12 : x
  2. Step 2: Convert to fraction form
    11,897.58/17,850.96 = 5,319.12/x
  3. Step 3: Cross multiply
    11,897.58x = 17,850.96 × 5,319.12
  4. Step 4: Simplify right side
    11,897.58x = 94,951,398.36
  5. Step 5: Solve for x
    x = 94,951,398.36/11,897.58
  6. Step 6: Final answer
    x = 7,980.73

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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.