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Finding the Fourth Proportional to 18,860.88, 26,025.12 and 10,901.56

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Solution

The fourth proportional to 18,860.88, 26,025.12 and 10,901.56 is: 15,042.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.88 : 26,025.12 = 10,901.56 : x
  2. Step 2: Convert to fraction form
    18,860.88/26,025.12 = 10,901.56/x
  3. Step 3: Cross multiply
    18,860.88x = 26,025.12 × 10,901.56
  4. Step 4: Simplify right side
    18,860.88x = 283,714,407.19
  5. Step 5: Solve for x
    x = 283,714,407.19/18,860.88
  6. Step 6: Final answer
    x = 15,042.48

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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.