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Finding the Fourth Proportional to 18,119.98, 25,004.93 and 10,162.03

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Solution

The fourth proportional to 18,119.98, 25,004.93 and 10,162.03 is: 14,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.98 : 25,004.93 = 10,162.03 : x
  2. Step 2: Convert to fraction form
    18,119.98/25,004.93 = 10,162.03/x
  3. Step 3: Cross multiply
    18,119.98x = 25,004.93 × 10,162.03
  4. Step 4: Simplify right side
    18,119.98x = 254,100,881.28
  5. Step 5: Solve for x
    x = 254,100,881.28/18,119.98
  6. Step 6: Final answer
    x = 14,023.24

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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.