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Finding the Fourth Proportional to 18,299.84, 25,254.24 and 11,230.16

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Solution

The fourth proportional to 18,299.84, 25,254.24 and 11,230.16 is: 15,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.84 : 25,254.24 = 11,230.16 : x
  2. Step 2: Convert to fraction form
    18,299.84/25,254.24 = 11,230.16/x
  3. Step 3: Cross multiply
    18,299.84x = 25,254.24 × 11,230.16
  4. Step 4: Simplify right side
    18,299.84x = 283,609,155.88
  5. Step 5: Solve for x
    x = 283,609,155.88/18,299.84
  6. Step 6: Final answer
    x = 15,497.90

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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.