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Finding the Fourth Proportional to 18,997.52, 26,216.52 and 10,499.40

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Solution

The fourth proportional to 18,997.52, 26,216.52 and 10,499.40 is: 14,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.52 : 26,216.52 = 10,499.40 : x
  2. Step 2: Convert to fraction form
    18,997.52/26,216.52 = 10,499.40/x
  3. Step 3: Cross multiply
    18,997.52x = 26,216.52 × 10,499.40
  4. Step 4: Simplify right side
    18,997.52x = 275,257,730.09
  5. Step 5: Solve for x
    x = 275,257,730.09/18,997.52
  6. Step 6: Final answer
    x = 14,489.14

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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.