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Finding the Fourth Proportional to 62,857, 86,742.66 and 37,714.60

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Solution

The fourth proportional to 62,857, 86,742.66 and 37,714.60 is: 52,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,857 : 86,742.66 = 37,714.60 : x
  2. Step 2: Convert to fraction form
    62,857/86,742.66 = 37,714.60/x
  3. Step 3: Cross multiply
    62,857x = 86,742.66 × 37,714.60
  4. Step 4: Simplify right side
    62,857x = 3,271,464,724.84
  5. Step 5: Solve for x
    x = 3,271,464,724.84/62,857
  6. Step 6: Final answer
    x = 52,046.15

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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.