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Finding the Fourth Proportional to 8,364.76, 11,517.06 and 6,368.92

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Solution

The fourth proportional to 8,364.76, 11,517.06 and 6,368.92 is: 8,769.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.76 : 11,517.06 = 6,368.92 : x
  2. Step 2: Convert to fraction form
    8,364.76/11,517.06 = 6,368.92/x
  3. Step 3: Cross multiply
    8,364.76x = 11,517.06 × 6,368.92
  4. Step 4: Simplify right side
    8,364.76x = 73,351,233.78
  5. Step 5: Solve for x
    x = 73,351,233.78/8,364.76
  6. Step 6: Final answer
    x = 8,769.08

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Half scale
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Double scale
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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.