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Finding the Fourth Proportional to 18,143.01, 25,035.42 and 10,186.11

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Solution

The fourth proportional to 18,143.01, 25,035.42 and 10,186.11 is: 14,055.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.01 : 25,035.42 = 10,186.11 : x
  2. Step 2: Convert to fraction form
    18,143.01/25,035.42 = 10,186.11/x
  3. Step 3: Cross multiply
    18,143.01x = 25,035.42 × 10,186.11
  4. Step 4: Simplify right side
    18,143.01x = 255,013,542.02
  5. Step 5: Solve for x
    x = 255,013,542.02/18,143.01
  6. Step 6: Final answer
    x = 14,055.75

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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.