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Finding the Fourth Proportional to 18,624.39, 27,931.08 and 5,473.62

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Solution

The fourth proportional to 18,624.39, 27,931.08 and 5,473.62 is: 8,208.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.39 : 27,931.08 = 5,473.62 : x
  2. Step 2: Convert to fraction form
    18,624.39/27,931.08 = 5,473.62/x
  3. Step 3: Cross multiply
    18,624.39x = 27,931.08 × 5,473.62
  4. Step 4: Simplify right side
    18,624.39x = 152,884,118.11
  5. Step 5: Solve for x
    x = 152,884,118.11/18,624.39
  6. Step 6: Final answer
    x = 8,208.81

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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.