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Finding the Fourth Proportional to 11,495.86, 17,243.79 and 7,417.78

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Solution

The fourth proportional to 11,495.86, 17,243.79 and 7,417.78 is: 11,126.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,495.86 : 17,243.79 = 7,417.78 : x
  2. Step 2: Convert to fraction form
    11,495.86/17,243.79 = 7,417.78/x
  3. Step 3: Cross multiply
    11,495.86x = 17,243.79 × 7,417.78
  4. Step 4: Simplify right side
    11,495.86x = 127,910,640.59
  5. Step 5: Solve for x
    x = 127,910,640.59/11,495.86
  6. Step 6: Final answer
    x = 11,126.67

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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.