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Finding the Fourth Proportional to 6,245.70, 9,368.55 and 5,261.55

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Solution

The fourth proportional to 6,245.70, 9,368.55 and 5,261.55 is: 7,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.70 : 9,368.55 = 5,261.55 : x
  2. Step 2: Convert to fraction form
    6,245.70/9,368.55 = 5,261.55/x
  3. Step 3: Cross multiply
    6,245.70x = 9,368.55 × 5,261.55
  4. Step 4: Simplify right side
    6,245.70x = 49,293,094.25
  5. Step 5: Solve for x
    x = 49,293,094.25/6,245.70
  6. Step 6: Final answer
    x = 7,892.33

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