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Finding the Fourth Proportional to 11,750.40, 16,218.40 and 7,037.44

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Solution

The fourth proportional to 11,750.40, 16,218.40 and 7,037.44 is: 9,713.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.40 : 16,218.40 = 7,037.44 : x
  2. Step 2: Convert to fraction form
    11,750.40/16,218.40 = 7,037.44/x
  3. Step 3: Cross multiply
    11,750.40x = 16,218.40 × 7,037.44
  4. Step 4: Simplify right side
    11,750.40x = 114,136,016.90
  5. Step 5: Solve for x
    x = 114,136,016.90/11,750.40
  6. Step 6: Final answer
    x = 9,713.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.