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Finding the Fourth Proportional to 10,636.63, 15,927.07 and 7,499.65

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Solution

The fourth proportional to 10,636.63, 15,927.07 and 7,499.65 is: 11,229.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.63 : 15,927.07 = 7,499.65 : x
  2. Step 2: Convert to fraction form
    10,636.63/15,927.07 = 7,499.65/x
  3. Step 3: Cross multiply
    10,636.63x = 15,927.07 × 7,499.65
  4. Step 4: Simplify right side
    10,636.63x = 119,447,450.53
  5. Step 5: Solve for x
    x = 119,447,450.53/10,636.63
  6. Step 6: Final answer
    x = 11,229.83

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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.