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Finding the Fourth Proportional to 86,410.59, 129,615.68 and 33,783.07

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Solution

The fourth proportional to 86,410.59, 129,615.68 and 33,783.07 is: 50,674.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,410.59 : 129,615.68 = 33,783.07 : x
  2. Step 2: Convert to fraction form
    86,410.59/129,615.68 = 33,783.07/x
  3. Step 3: Cross multiply
    86,410.59x = 129,615.68 × 33,783.07
  4. Step 4: Simplify right side
    86,410.59x = 4,378,814,773.54
  5. Step 5: Solve for x
    x = 4,378,814,773.54/86,410.59
  6. Step 6: Final answer
    x = 50,674.52

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Similar ratio
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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.