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Finding the Fourth Proportional to 13,612.86, 20,404.71 and 4,844.88

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Solution

The fourth proportional to 13,612.86, 20,404.71 and 4,844.88 is: 7,262.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.86 : 20,404.71 = 4,844.88 : x
  2. Step 2: Convert to fraction form
    13,612.86/20,404.71 = 4,844.88/x
  3. Step 3: Cross multiply
    13,612.86x = 20,404.71 × 4,844.88
  4. Step 4: Simplify right side
    13,612.86x = 98,858,371.38
  5. Step 5: Solve for x
    x = 98,858,371.38/13,612.86
  6. Step 6: Final answer
    x = 7,262.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.