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Finding the Fourth Proportional to 84,714.80, 126,902.79 and 50,962.21

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Solution

The fourth proportional to 84,714.80, 126,902.79 and 50,962.21 is: 76,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,714.80 : 126,902.79 = 50,962.21 : x
  2. Step 2: Convert to fraction form
    84,714.80/126,902.79 = 50,962.21/x
  3. Step 3: Cross multiply
    84,714.80x = 126,902.79 × 50,962.21
  4. Step 4: Simplify right side
    84,714.80x = 6,467,246,316.31
  5. Step 5: Solve for x
    x = 6,467,246,316.31/84,714.80
  6. Step 6: Final answer
    x = 76,341.40

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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.