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Finding the Fourth Proportional to 8,145.52, 11,241.52 and 4,609.42

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Solution

The fourth proportional to 8,145.52, 11,241.52 and 4,609.42 is: 6,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.52 : 11,241.52 = 4,609.42 : x
  2. Step 2: Convert to fraction form
    8,145.52/11,241.52 = 4,609.42/x
  3. Step 3: Cross multiply
    8,145.52x = 11,241.52 × 4,609.42
  4. Step 4: Simplify right side
    8,145.52x = 51,816,887.12
  5. Step 5: Solve for x
    x = 51,816,887.12/8,145.52
  6. Step 6: Final answer
    x = 6,361.40

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Half scale
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Double scale
Find fourth proportional to 8,146.52, 11,242.90 and 4,610.42
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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.