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Finding the Fourth Proportional to 9,765.15, 13,474.45 and 5,934.79

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Solution

The fourth proportional to 9,765.15, 13,474.45 and 5,934.79 is: 8,189.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.15 : 13,474.45 = 5,934.79 : x
  2. Step 2: Convert to fraction form
    9,765.15/13,474.45 = 5,934.79/x
  3. Step 3: Cross multiply
    9,765.15x = 13,474.45 × 5,934.79
  4. Step 4: Simplify right side
    9,765.15x = 79,968,031.12
  5. Step 5: Solve for x
    x = 79,968,031.12/9,765.15
  6. Step 6: Final answer
    x = 8,189.12

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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.