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Finding the Fourth Proportional to 18,188.96, 27,284.06 and 5,041.48

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Solution

The fourth proportional to 18,188.96, 27,284.06 and 5,041.48 is: 7,562.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.96 : 27,284.06 = 5,041.48 : x
  2. Step 2: Convert to fraction form
    18,188.96/27,284.06 = 5,041.48/x
  3. Step 3: Cross multiply
    18,188.96x = 27,284.06 × 5,041.48
  4. Step 4: Simplify right side
    18,188.96x = 137,552,042.81
  5. Step 5: Solve for x
    x = 137,552,042.81/18,188.96
  6. Step 6: Final answer
    x = 7,562.39

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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.