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Finding the Fourth Proportional to 10,893.40, 16,340.10 and 9,683.80

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Solution

The fourth proportional to 10,893.40, 16,340.10 and 9,683.80 is: 14,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.40 : 16,340.10 = 9,683.80 : x
  2. Step 2: Convert to fraction form
    10,893.40/16,340.10 = 9,683.80/x
  3. Step 3: Cross multiply
    10,893.40x = 16,340.10 × 9,683.80
  4. Step 4: Simplify right side
    10,893.40x = 158,234,260.38
  5. Step 5: Solve for x
    x = 158,234,260.38/10,893.40
  6. Step 6: Final answer
    x = 14,525.70

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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.