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Finding the Fourth Proportional to 10,636.67, 15,955.01 and 4,786.44

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Solution

The fourth proportional to 10,636.67, 15,955.01 and 4,786.44 is: 7,179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.67 : 15,955.01 = 4,786.44 : x
  2. Step 2: Convert to fraction form
    10,636.67/15,955.01 = 4,786.44/x
  3. Step 3: Cross multiply
    10,636.67x = 15,955.01 × 4,786.44
  4. Step 4: Simplify right side
    10,636.67x = 76,367,674.13
  5. Step 5: Solve for x
    x = 76,367,674.13/10,636.67
  6. Step 6: Final answer
    x = 7,179.66

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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.