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Finding the Fourth Proportional to 18,566.19, 27,806.05 and 11,154.28

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Solution

The fourth proportional to 18,566.19, 27,806.05 and 11,154.28 is: 16,705.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,566.19 : 27,806.05 = 11,154.28 : x
  2. Step 2: Convert to fraction form
    18,566.19/27,806.05 = 11,154.28/x
  3. Step 3: Cross multiply
    18,566.19x = 27,806.05 × 11,154.28
  4. Step 4: Simplify right side
    18,566.19x = 310,156,467.39
  5. Step 5: Solve for x
    x = 310,156,467.39/18,566.19
  6. Step 6: Final answer
    x = 16,705.45

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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.