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Finding the Fourth Proportional to 15,232.84, 21,019.86 and 8,944.12

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Solution

The fourth proportional to 15,232.84, 21,019.86 and 8,944.12 is: 12,342.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,232.84 : 21,019.86 = 8,944.12 : x
  2. Step 2: Convert to fraction form
    15,232.84/21,019.86 = 8,944.12/x
  3. Step 3: Cross multiply
    15,232.84x = 21,019.86 × 8,944.12
  4. Step 4: Simplify right side
    15,232.84x = 188,004,150.22
  5. Step 5: Solve for x
    x = 188,004,150.22/15,232.84
  6. Step 6: Final answer
    x = 12,342.03

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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.