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Finding the Fourth Proportional to 86,410.59, 129,615.67 and 33,783.06

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Solution

The fourth proportional to 86,410.59, 129,615.67 and 33,783.06 is: 50,674.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,410.59 : 129,615.67 = 33,783.06 : x
  2. Step 2: Convert to fraction form
    86,410.59/129,615.67 = 33,783.06/x
  3. Step 3: Cross multiply
    86,410.59x = 129,615.67 × 33,783.06
  4. Step 4: Simplify right side
    86,410.59x = 4,378,813,956.55
  5. Step 5: Solve for x
    x = 4,378,813,956.55/86,410.59
  6. Step 6: Final answer
    x = 50,674.51

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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.