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Finding the Fourth Proportional to 5,376.76, 7,416.14 and 4,936.12

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Solution

The fourth proportional to 5,376.76, 7,416.14 and 4,936.12 is: 6,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.76 : 7,416.14 = 4,936.12 : x
  2. Step 2: Convert to fraction form
    5,376.76/7,416.14 = 4,936.12/x
  3. Step 3: Cross multiply
    5,376.76x = 7,416.14 × 4,936.12
  4. Step 4: Simplify right side
    5,376.76x = 36,606,956.98
  5. Step 5: Solve for x
    x = 36,606,956.98/5,376.76
  6. Step 6: Final answer
    x = 6,808.37

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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.