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Finding the Fourth Proportional to 10,636.91, 15,955.37 and 4,786.68

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Solution

The fourth proportional to 10,636.91, 15,955.37 and 4,786.68 is: 7,180.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.91 : 15,955.37 = 4,786.68 : x
  2. Step 2: Convert to fraction form
    10,636.91/15,955.37 = 4,786.68/x
  3. Step 3: Cross multiply
    10,636.91x = 15,955.37 × 4,786.68
  4. Step 4: Simplify right side
    10,636.91x = 76,373,250.47
  5. Step 5: Solve for x
    x = 76,373,250.47/10,636.91
  6. Step 6: Final answer
    x = 7,180.02

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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.