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Finding the Fourth Proportional to 18,859.44, 26,023.13 and 10,900.13

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Solution

The fourth proportional to 18,859.44, 26,023.13 and 10,900.13 is: 15,040.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.44 : 26,023.13 = 10,900.13 : x
  2. Step 2: Convert to fraction form
    18,859.44/26,023.13 = 10,900.13/x
  3. Step 3: Cross multiply
    18,859.44x = 26,023.13 × 10,900.13
  4. Step 4: Simplify right side
    18,859.44x = 283,655,369.89
  5. Step 5: Solve for x
    x = 283,655,369.89/18,859.44
  6. Step 6: Final answer
    x = 15,040.50

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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.