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Finding the Fourth Proportional to 11,359.60, 17,027.70 and 5,122.60

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Solution

The fourth proportional to 11,359.60, 17,027.70 and 5,122.60 is: 7,678.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.60 : 17,027.70 = 5,122.60 : x
  2. Step 2: Convert to fraction form
    11,359.60/17,027.70 = 5,122.60/x
  3. Step 3: Cross multiply
    11,359.60x = 17,027.70 × 5,122.60
  4. Step 4: Simplify right side
    11,359.60x = 87,226,096.02
  5. Step 5: Solve for x
    x = 87,226,096.02/11,359.60
  6. Step 6: Final answer
    x = 7,678.62

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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.