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Finding the Fourth Proportional to 33,517.80, 50,275.08 and 12,457.80

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Solution

The fourth proportional to 33,517.80, 50,275.08 and 12,457.80 is: 18,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,517.80 : 50,275.08 = 12,457.80 : x
  2. Step 2: Convert to fraction form
    33,517.80/50,275.08 = 12,457.80/x
  3. Step 3: Cross multiply
    33,517.80x = 50,275.08 × 12,457.80
  4. Step 4: Simplify right side
    33,517.80x = 626,316,891.62
  5. Step 5: Solve for x
    x = 626,316,891.62/33,517.80
  6. Step 6: Final answer
    x = 18,686.10

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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.