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Finding the Fourth Proportional to 11,798.52, 17,687.46 and 4,774.20

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Solution

The fourth proportional to 11,798.52, 17,687.46 and 4,774.20 is: 7,157.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,798.52 : 17,687.46 = 4,774.20 : x
  2. Step 2: Convert to fraction form
    11,798.52/17,687.46 = 4,774.20/x
  3. Step 3: Cross multiply
    11,798.52x = 17,687.46 × 4,774.20
  4. Step 4: Simplify right side
    11,798.52x = 84,443,471.53
  5. Step 5: Solve for x
    x = 84,443,471.53/11,798.52
  6. Step 6: Final answer
    x = 7,157.12

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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.