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Finding the Fourth Proportional to 18,119.96, 25,005.15 and 10,162.01

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Solution

The fourth proportional to 18,119.96, 25,005.15 and 10,162.01 is: 14,023.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.96 : 25,005.15 = 10,162.01 : x
  2. Step 2: Convert to fraction form
    18,119.96/25,005.15 = 10,162.01/x
  3. Step 3: Cross multiply
    18,119.96x = 25,005.15 × 10,162.01
  4. Step 4: Simplify right side
    18,119.96x = 254,102,584.35
  5. Step 5: Solve for x
    x = 254,102,584.35/18,119.96
  6. Step 6: Final answer
    x = 14,023.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.