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Finding the Fourth Proportional to 7,600.68, 10,487.98 and 4,243.68

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Solution

The fourth proportional to 7,600.68, 10,487.98 and 4,243.68 is: 5,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,600.68 : 10,487.98 = 4,243.68 : x
  2. Step 2: Convert to fraction form
    7,600.68/10,487.98 = 4,243.68/x
  3. Step 3: Cross multiply
    7,600.68x = 10,487.98 × 4,243.68
  4. Step 4: Simplify right side
    7,600.68x = 44,507,630.97
  5. Step 5: Solve for x
    x = 44,507,630.97/7,600.68
  6. Step 6: Final answer
    x = 5,855.74

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Half scale
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Double scale
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Similar ratio
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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.