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Finding the Fourth Proportional to 5,196.70, 7,795.05 and 3,123.10

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Solution

The fourth proportional to 5,196.70, 7,795.05 and 3,123.10 is: 4,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,196.70 : 7,795.05 = 3,123.10 : x
  2. Step 2: Convert to fraction form
    5,196.70/7,795.05 = 3,123.10/x
  3. Step 3: Cross multiply
    5,196.70x = 7,795.05 × 3,123.10
  4. Step 4: Simplify right side
    5,196.70x = 24,344,720.66
  5. Step 5: Solve for x
    x = 24,344,720.66/5,196.70
  6. Step 6: Final answer
    x = 4,684.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.