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Finding the Fourth Proportional to 17,775.78, 26,679.93 and 9,016.74

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Solution

The fourth proportional to 17,775.78, 26,679.93 and 9,016.74 is: 13,533.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.78 : 26,679.93 = 9,016.74 : x
  2. Step 2: Convert to fraction form
    17,775.78/26,679.93 = 9,016.74/x
  3. Step 3: Cross multiply
    17,775.78x = 26,679.93 × 9,016.74
  4. Step 4: Simplify right side
    17,775.78x = 240,565,992.03
  5. Step 5: Solve for x
    x = 240,565,992.03/17,775.78
  6. Step 6: Final answer
    x = 13,533.36

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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.