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Finding the Fourth Proportional to 85,308.96, 127,979.82 and 32,714.34

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Solution

The fourth proportional to 85,308.96, 127,979.82 and 32,714.34 is: 49,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,308.96 : 127,979.82 = 32,714.34 : x
  2. Step 2: Convert to fraction form
    85,308.96/127,979.82 = 32,714.34/x
  3. Step 3: Cross multiply
    85,308.96x = 127,979.82 × 32,714.34
  4. Step 4: Simplify right side
    85,308.96x = 4,186,775,344.62
  5. Step 5: Solve for x
    x = 4,186,775,344.62/85,308.96
  6. Step 6: Final answer
    x = 49,077.79

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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.