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Finding the Fourth Proportional to 11,938.64, 17,898.64 and 5,360.22

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Solution

The fourth proportional to 11,938.64, 17,898.64 and 5,360.22 is: 8,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.64 : 17,898.64 = 5,360.22 : x
  2. Step 2: Convert to fraction form
    11,938.64/17,898.64 = 5,360.22/x
  3. Step 3: Cross multiply
    11,938.64x = 17,898.64 × 5,360.22
  4. Step 4: Simplify right side
    11,938.64x = 95,940,634.70
  5. Step 5: Solve for x
    x = 95,940,634.70/11,938.64
  6. Step 6: Final answer
    x = 8,036.15

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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.