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Finding the Fourth Proportional to 71,141.85, 106,714.60 and 33,693.12

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Solution

The fourth proportional to 71,141.85, 106,714.60 and 33,693.12 is: 50,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.85 : 106,714.60 = 33,693.12 : x
  2. Step 2: Convert to fraction form
    71,141.85/106,714.60 = 33,693.12/x
  3. Step 3: Cross multiply
    71,141.85x = 106,714.60 × 33,693.12
  4. Step 4: Simplify right side
    71,141.85x = 3,595,547,739.32
  5. Step 5: Solve for x
    x = 3,595,547,739.32/71,141.85
  6. Step 6: Final answer
    x = 50,540.54

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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.