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Finding the Fourth Proportional to 18,101.54, 27,095.51 and 12,446.21

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Solution

The fourth proportional to 18,101.54, 27,095.51 and 12,446.21 is: 18,630.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.54 : 27,095.51 = 12,446.21 : x
  2. Step 2: Convert to fraction form
    18,101.54/27,095.51 = 12,446.21/x
  3. Step 3: Cross multiply
    18,101.54x = 27,095.51 × 12,446.21
  4. Step 4: Simplify right side
    18,101.54x = 337,236,420.00
  5. Step 5: Solve for x
    x = 337,236,420.00/18,101.54
  6. Step 6: Final answer
    x = 18,630.26

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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.