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Finding the Fourth Proportional to 18,937.73, 26,134.18 and 10,984.68

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Solution

The fourth proportional to 18,937.73, 26,134.18 and 10,984.68 is: 15,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.73 : 26,134.18 = 10,984.68 : x
  2. Step 2: Convert to fraction form
    18,937.73/26,134.18 = 10,984.68/x
  3. Step 3: Cross multiply
    18,937.73x = 26,134.18 × 10,984.68
  4. Step 4: Simplify right side
    18,937.73x = 287,075,576.90
  5. Step 5: Solve for x
    x = 287,075,576.90/18,937.73
  6. Step 6: Final answer
    x = 15,158.92

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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.