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Finding the Fourth Proportional to 18,887.67, 26,062.07 and 10,930.63

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Solution

The fourth proportional to 18,887.67, 26,062.07 and 10,930.63 is: 15,082.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.67 : 26,062.07 = 10,930.63 : x
  2. Step 2: Convert to fraction form
    18,887.67/26,062.07 = 10,930.63/x
  3. Step 3: Cross multiply
    18,887.67x = 26,062.07 × 10,930.63
  4. Step 4: Simplify right side
    18,887.67x = 284,874,844.20
  5. Step 5: Solve for x
    x = 284,874,844.20/18,887.67
  6. Step 6: Final answer
    x = 15,082.58

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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.