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Finding the Fourth Proportional to 52,777.20, 79,165.80 and 33,116.40

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Solution

The fourth proportional to 52,777.20, 79,165.80 and 33,116.40 is: 49,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,777.20 : 79,165.80 = 33,116.40 : x
  2. Step 2: Convert to fraction form
    52,777.20/79,165.80 = 33,116.40/x
  3. Step 3: Cross multiply
    52,777.20x = 79,165.80 × 33,116.40
  4. Step 4: Simplify right side
    52,777.20x = 2,621,686,299.12
  5. Step 5: Solve for x
    x = 2,621,686,299.12/52,777.20
  6. Step 6: Final answer
    x = 49,674.60

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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.