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Finding the Fourth Proportional to 18,125.76, 27,184.68 and 4,976.76

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Solution

The fourth proportional to 18,125.76, 27,184.68 and 4,976.76 is: 7,464.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.76 : 27,184.68 = 4,976.76 : x
  2. Step 2: Convert to fraction form
    18,125.76/27,184.68 = 4,976.76/x
  3. Step 3: Cross multiply
    18,125.76x = 27,184.68 × 4,976.76
  4. Step 4: Simplify right side
    18,125.76x = 135,291,628.04
  5. Step 5: Solve for x
    x = 135,291,628.04/18,125.76
  6. Step 6: Final answer
    x = 7,464.05

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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.