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Finding the Fourth Proportional to 20,482.40, 30,694.74 and 16,303.82

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Solution

The fourth proportional to 20,482.40, 30,694.74 and 16,303.82 is: 24,432.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.40 : 30,694.74 = 16,303.82 : x
  2. Step 2: Convert to fraction form
    20,482.40/30,694.74 = 16,303.82/x
  3. Step 3: Cross multiply
    20,482.40x = 30,694.74 × 16,303.82
  4. Step 4: Simplify right side
    20,482.40x = 500,441,515.91
  5. Step 5: Solve for x
    x = 500,441,515.91/20,482.40
  6. Step 6: Final answer
    x = 24,432.76

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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.