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Finding the Fourth Proportional to 86,525.80, 129,767.10 and 33,206.20

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Solution

The fourth proportional to 86,525.80, 129,767.10 and 33,206.20 is: 49,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,525.80 : 129,767.10 = 33,206.20 : x
  2. Step 2: Convert to fraction form
    86,525.80/129,767.10 = 33,206.20/x
  3. Step 3: Cross multiply
    86,525.80x = 129,767.10 × 33,206.20
  4. Step 4: Simplify right side
    86,525.80x = 4,309,072,276.02
  5. Step 5: Solve for x
    x = 4,309,072,276.02/86,525.80
  6. Step 6: Final answer
    x = 49,801.01

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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.