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Finding the Fourth Proportional to 7,753.40, 10,699.73 and 4,609.61

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Solution

The fourth proportional to 7,753.40, 10,699.73 and 4,609.61 is: 6,361.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,753.40 : 10,699.73 = 4,609.61 : x
  2. Step 2: Convert to fraction form
    7,753.40/10,699.73 = 4,609.61/x
  3. Step 3: Cross multiply
    7,753.40x = 10,699.73 × 4,609.61
  4. Step 4: Simplify right side
    7,753.40x = 49,321,505.86
  5. Step 5: Solve for x
    x = 49,321,505.86/7,753.40
  6. Step 6: Final answer
    x = 6,361.28

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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.