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Finding the Fourth Proportional to 15,558.68, 21,470.99 and 8,844.14

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Solution

The fourth proportional to 15,558.68, 21,470.99 and 8,844.14 is: 12,204.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.68 : 21,470.99 = 8,844.14 : x
  2. Step 2: Convert to fraction form
    15,558.68/21,470.99 = 8,844.14/x
  3. Step 3: Cross multiply
    15,558.68x = 21,470.99 × 8,844.14
  4. Step 4: Simplify right side
    15,558.68x = 189,892,342.62
  5. Step 5: Solve for x
    x = 189,892,342.62/15,558.68
  6. Step 6: Final answer
    x = 12,204.91

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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.