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Finding the Fourth Proportional to 8,927.16, 13,399.44 and 7,455.80

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Solution

The fourth proportional to 8,927.16, 13,399.44 and 7,455.80 is: 11,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,927.16 : 13,399.44 = 7,455.80 : x
  2. Step 2: Convert to fraction form
    8,927.16/13,399.44 = 7,455.80/x
  3. Step 3: Cross multiply
    8,927.16x = 13,399.44 × 7,455.80
  4. Step 4: Simplify right side
    8,927.16x = 99,903,544.75
  5. Step 5: Solve for x
    x = 99,903,544.75/8,927.16
  6. Step 6: Final answer
    x = 11,190.97

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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.