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Finding the Fourth Proportional to 11,565.75, 15,960.74 and 6,597.75

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Solution

The fourth proportional to 11,565.75, 15,960.74 and 6,597.75 is: 9,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,565.75 : 15,960.74 = 6,597.75 : x
  2. Step 2: Convert to fraction form
    11,565.75/15,960.74 = 6,597.75/x
  3. Step 3: Cross multiply
    11,565.75x = 15,960.74 × 6,597.75
  4. Step 4: Simplify right side
    11,565.75x = 105,304,939.35
  5. Step 5: Solve for x
    x = 105,304,939.35/11,565.75
  6. Step 6: Final answer
    x = 9,104.90

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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.