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Finding the Fourth Proportional to 18,582.43, 27,877.89 and 8,054.21

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Solution

The fourth proportional to 18,582.43, 27,877.89 and 8,054.21 is: 12,083.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,582.43 : 27,877.89 = 8,054.21 : x
  2. Step 2: Convert to fraction form
    18,582.43/27,877.89 = 8,054.21/x
  3. Step 3: Cross multiply
    18,582.43x = 27,877.89 × 8,054.21
  4. Step 4: Simplify right side
    18,582.43x = 224,534,400.55
  5. Step 5: Solve for x
    x = 224,534,400.55/18,582.43
  6. Step 6: Final answer
    x = 12,083.16

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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.