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Finding the Fourth Proportional to 52,719.40, 79,079.10 and 33,020.20

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Solution

The fourth proportional to 52,719.40, 79,079.10 and 33,020.20 is: 49,530.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,719.40 : 79,079.10 = 33,020.20 : x
  2. Step 2: Convert to fraction form
    52,719.40/79,079.10 = 33,020.20/x
  3. Step 3: Cross multiply
    52,719.40x = 79,079.10 × 33,020.20
  4. Step 4: Simplify right side
    52,719.40x = 2,611,207,697.82
  5. Step 5: Solve for x
    x = 2,611,207,697.82/52,719.40
  6. Step 6: Final answer
    x = 49,530.30

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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.