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Finding the Fourth Proportional to 16,598.80, 24,905.40 and 8,390.80

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Solution

The fourth proportional to 16,598.80, 24,905.40 and 8,390.80 is: 12,589.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,598.80 : 24,905.40 = 8,390.80 : x
  2. Step 2: Convert to fraction form
    16,598.80/24,905.40 = 8,390.80/x
  3. Step 3: Cross multiply
    16,598.80x = 24,905.40 × 8,390.80
  4. Step 4: Simplify right side
    16,598.80x = 208,976,230.32
  5. Step 5: Solve for x
    x = 208,976,230.32/16,598.80
  6. Step 6: Final answer
    x = 12,589.84

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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.