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Finding the Fourth Proportional to 18,462.54, 25,477.94 and 10,079.10

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Solution

The fourth proportional to 18,462.54, 25,477.94 and 10,079.10 is: 13,908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.54 : 25,477.94 = 10,079.10 : x
  2. Step 2: Convert to fraction form
    18,462.54/25,477.94 = 10,079.10/x
  3. Step 3: Cross multiply
    18,462.54x = 25,477.94 × 10,079.10
  4. Step 4: Simplify right side
    18,462.54x = 256,794,705.05
  5. Step 5: Solve for x
    x = 256,794,705.05/18,462.54
  6. Step 6: Final answer
    x = 13,908.96

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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.