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Finding the Fourth Proportional to 7,655.12, 11,487 and 7,596.56

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Solution

The fourth proportional to 7,655.12, 11,487 and 7,596.56 is: 11,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.12 : 11,487 = 7,596.56 : x
  2. Step 2: Convert to fraction form
    7,655.12/11,487 = 7,596.56/x
  3. Step 3: Cross multiply
    7,655.12x = 11,487 × 7,596.56
  4. Step 4: Simplify right side
    7,655.12x = 87,261,684.72
  5. Step 5: Solve for x
    x = 87,261,684.72/7,655.12
  6. Step 6: Final answer
    x = 11,399.13

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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.