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Finding the Fourth Proportional to 84,496.48, 126,699.26 and 33,870.12

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Solution

The fourth proportional to 84,496.48, 126,699.26 and 33,870.12 is: 50,786.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,496.48 : 126,699.26 = 33,870.12 : x
  2. Step 2: Convert to fraction form
    84,496.48/126,699.26 = 33,870.12/x
  3. Step 3: Cross multiply
    84,496.48x = 126,699.26 × 33,870.12
  4. Step 4: Simplify right side
    84,496.48x = 4,291,319,140.11
  5. Step 5: Solve for x
    x = 4,291,319,140.11/84,496.48
  6. Step 6: Final answer
    x = 50,786.96

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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.