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Finding the Fourth Proportional to 18,345.36, 27,500.94 and 6,655.44

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Solution

The fourth proportional to 18,345.36, 27,500.94 and 6,655.44 is: 9,976.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.36 : 27,500.94 = 6,655.44 : x
  2. Step 2: Convert to fraction form
    18,345.36/27,500.94 = 6,655.44/x
  3. Step 3: Cross multiply
    18,345.36x = 27,500.94 × 6,655.44
  4. Step 4: Simplify right side
    18,345.36x = 183,030,856.11
  5. Step 5: Solve for x
    x = 183,030,856.11/18,345.36
  6. Step 6: Final answer
    x = 9,976.96

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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.