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Finding the Fourth Proportional to 11,400.60, 17,111.70 and 7,026.60

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Solution

The fourth proportional to 11,400.60, 17,111.70 and 7,026.60 is: 10,546.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400.60 : 17,111.70 = 7,026.60 : x
  2. Step 2: Convert to fraction form
    11,400.60/17,111.70 = 7,026.60/x
  3. Step 3: Cross multiply
    11,400.60x = 17,111.70 × 7,026.60
  4. Step 4: Simplify right side
    11,400.60x = 120,237,071.22
  5. Step 5: Solve for x
    x = 120,237,071.22/11,400.60
  6. Step 6: Final answer
    x = 10,546.56

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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.