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Finding the Fourth Proportional to 30,859.20, 46,288.80 and 22,402.80

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Solution

The fourth proportional to 30,859.20, 46,288.80 and 22,402.80 is: 33,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,859.20 : 46,288.80 = 22,402.80 : x
  2. Step 2: Convert to fraction form
    30,859.20/46,288.80 = 22,402.80/x
  3. Step 3: Cross multiply
    30,859.20x = 46,288.80 × 22,402.80
  4. Step 4: Simplify right side
    30,859.20x = 1,036,998,728.64
  5. Step 5: Solve for x
    x = 1,036,998,728.64/30,859.20
  6. Step 6: Final answer
    x = 33,604.20

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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.