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Finding the Fourth Proportional to 11,998.32, 17,998.52 and 4,100.52

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Solution

The fourth proportional to 11,998.32, 17,998.52 and 4,100.52 is: 6,151.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.32 : 17,998.52 = 4,100.52 : x
  2. Step 2: Convert to fraction form
    11,998.32/17,998.52 = 4,100.52/x
  3. Step 3: Cross multiply
    11,998.32x = 17,998.52 × 4,100.52
  4. Step 4: Simplify right side
    11,998.32x = 73,803,291.23
  5. Step 5: Solve for x
    x = 73,803,291.23/11,998.32
  6. Step 6: Final answer
    x = 6,151.14

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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.