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Finding the Fourth Proportional to 18,859.87, 26,023.73 and 10,900.56

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Solution

The fourth proportional to 18,859.87, 26,023.73 and 10,900.56 is: 15,041.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.87 : 26,023.73 = 10,900.56 : x
  2. Step 2: Convert to fraction form
    18,859.87/26,023.73 = 10,900.56/x
  3. Step 3: Cross multiply
    18,859.87x = 26,023.73 × 10,900.56
  4. Step 4: Simplify right side
    18,859.87x = 283,673,230.29
  5. Step 5: Solve for x
    x = 283,673,230.29/18,859.87
  6. Step 6: Final answer
    x = 15,041.10

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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.