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Finding the Fourth Proportional to 16,511.80, 24,770.90 and 8,303.80

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Solution

The fourth proportional to 16,511.80, 24,770.90 and 8,303.80 is: 12,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,511.80 : 24,770.90 = 8,303.80 : x
  2. Step 2: Convert to fraction form
    16,511.80/24,770.90 = 8,303.80/x
  3. Step 3: Cross multiply
    16,511.80x = 24,770.90 × 8,303.80
  4. Step 4: Simplify right side
    16,511.80x = 205,692,599.42
  5. Step 5: Solve for x
    x = 205,692,599.42/16,511.80
  6. Step 6: Final answer
    x = 12,457.31

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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.