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Finding the Fourth Proportional to 18,009.70, 27,014.55 and 10,104.10

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Solution

The fourth proportional to 18,009.70, 27,014.55 and 10,104.10 is: 15,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.70 : 27,014.55 = 10,104.10 : x
  2. Step 2: Convert to fraction form
    18,009.70/27,014.55 = 10,104.10/x
  3. Step 3: Cross multiply
    18,009.70x = 27,014.55 × 10,104.10
  4. Step 4: Simplify right side
    18,009.70x = 272,957,714.66
  5. Step 5: Solve for x
    x = 272,957,714.66/18,009.70
  6. Step 6: Final answer
    x = 15,156.15

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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.