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Finding the Fourth Proportional to 18,954.58, 28,444.17 and 8,566.42

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Solution

The fourth proportional to 18,954.58, 28,444.17 and 8,566.42 is: 12,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954.58 : 28,444.17 = 8,566.42 : x
  2. Step 2: Convert to fraction form
    18,954.58/28,444.17 = 8,566.42/x
  3. Step 3: Cross multiply
    18,954.58x = 28,444.17 × 8,566.42
  4. Step 4: Simplify right side
    18,954.58x = 243,664,706.77
  5. Step 5: Solve for x
    x = 243,664,706.77/18,954.58
  6. Step 6: Final answer
    x = 12,855.19

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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.