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Finding the Fourth Proportional to 8,064.76, 11,129.94 and 4,527.72

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Solution

The fourth proportional to 8,064.76, 11,129.94 and 4,527.72 is: 6,248.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064.76 : 11,129.94 = 4,527.72 : x
  2. Step 2: Convert to fraction form
    8,064.76/11,129.94 = 4,527.72/x
  3. Step 3: Cross multiply
    8,064.76x = 11,129.94 × 4,527.72
  4. Step 4: Simplify right side
    8,064.76x = 50,393,251.94
  5. Step 5: Solve for x
    x = 50,393,251.94/8,064.76
  6. Step 6: Final answer
    x = 6,248.57

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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.