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Finding the Fourth Proportional to 18,484.20, 27,727.20 and 9,005.22

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Solution

The fourth proportional to 18,484.20, 27,727.20 and 9,005.22 is: 13,508.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,484.20 : 27,727.20 = 9,005.22 : x
  2. Step 2: Convert to fraction form
    18,484.20/27,727.20 = 9,005.22/x
  3. Step 3: Cross multiply
    18,484.20x = 27,727.20 × 9,005.22
  4. Step 4: Simplify right side
    18,484.20x = 249,689,535.98
  5. Step 5: Solve for x
    x = 249,689,535.98/18,484.20
  6. Step 6: Final answer
    x = 13,508.27

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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.