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Finding the Fourth Proportional to 48,276.80, 72,415.20 and 33,531.20

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Solution

The fourth proportional to 48,276.80, 72,415.20 and 33,531.20 is: 50,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,276.80 : 72,415.20 = 33,531.20 : x
  2. Step 2: Convert to fraction form
    48,276.80/72,415.20 = 33,531.20/x
  3. Step 3: Cross multiply
    48,276.80x = 72,415.20 × 33,531.20
  4. Step 4: Simplify right side
    48,276.80x = 2,428,168,554.24
  5. Step 5: Solve for x
    x = 2,428,168,554.24/48,276.80
  6. Step 6: Final answer
    x = 50,296.80

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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.