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Finding the Fourth Proportional to 30,674.80, 46,012.20 and 18,233.20

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Solution

The fourth proportional to 30,674.80, 46,012.20 and 18,233.20 is: 27,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,674.80 : 46,012.20 = 18,233.20 : x
  2. Step 2: Convert to fraction form
    30,674.80/46,012.20 = 18,233.20/x
  3. Step 3: Cross multiply
    30,674.80x = 46,012.20 × 18,233.20
  4. Step 4: Simplify right side
    30,674.80x = 838,949,645.04
  5. Step 5: Solve for x
    x = 838,949,645.04/30,674.80
  6. Step 6: Final answer
    x = 27,349.80

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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.