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Finding the Fourth Proportional to 7,607.88, 11,410.20 and 5,012.64

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Solution

The fourth proportional to 7,607.88, 11,410.20 and 5,012.64 is: 7,517.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,607.88 : 11,410.20 = 5,012.64 : x
  2. Step 2: Convert to fraction form
    7,607.88/11,410.20 = 5,012.64/x
  3. Step 3: Cross multiply
    7,607.88x = 11,410.20 × 5,012.64
  4. Step 4: Simplify right side
    7,607.88x = 57,195,224.93
  5. Step 5: Solve for x
    x = 57,195,224.93/7,607.88
  6. Step 6: Final answer
    x = 7,517.89

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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.