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Finding the Fourth Proportional to 9,757.93, 13,479.73 and 7,765.93

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Solution

The fourth proportional to 9,757.93, 13,479.73 and 7,765.93 is: 10,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,757.93 : 13,479.73 = 7,765.93 : x
  2. Step 2: Convert to fraction form
    9,757.93/13,479.73 = 7,765.93/x
  3. Step 3: Cross multiply
    9,757.93x = 13,479.73 × 7,765.93
  4. Step 4: Simplify right side
    9,757.93x = 104,682,639.60
  5. Step 5: Solve for x
    x = 104,682,639.60/9,757.93
  6. Step 6: Final answer
    x = 10,727.96

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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.