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Finding the Fourth Proportional to 16,391.70, 24,612.08 and 9,379.62

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Solution

The fourth proportional to 16,391.70, 24,612.08 and 9,379.62 is: 14,083.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.70 : 24,612.08 = 9,379.62 : x
  2. Step 2: Convert to fraction form
    16,391.70/24,612.08 = 9,379.62/x
  3. Step 3: Cross multiply
    16,391.70x = 24,612.08 × 9,379.62
  4. Step 4: Simplify right side
    16,391.70x = 230,851,957.81
  5. Step 5: Solve for x
    x = 230,851,957.81/16,391.70
  6. Step 6: Final answer
    x = 14,083.47

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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.