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Finding the Fourth Proportional to 18,401, 25,396.26 and 10,953.32

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Solution

The fourth proportional to 18,401, 25,396.26 and 10,953.32 is: 15,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,401 : 25,396.26 = 10,953.32 : x
  2. Step 2: Convert to fraction form
    18,401/25,396.26 = 10,953.32/x
  3. Step 3: Cross multiply
    18,401x = 25,396.26 × 10,953.32
  4. Step 4: Simplify right side
    18,401x = 278,173,362.58
  5. Step 5: Solve for x
    x = 278,173,362.58/18,401
  6. Step 6: Final answer
    x = 15,117.30

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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.