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Finding the Fourth Proportional to 10,753.80, 16,130.70 and 9,951.90

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Solution

The fourth proportional to 10,753.80, 16,130.70 and 9,951.90 is: 14,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,753.80 : 16,130.70 = 9,951.90 : x
  2. Step 2: Convert to fraction form
    10,753.80/16,130.70 = 9,951.90/x
  3. Step 3: Cross multiply
    10,753.80x = 16,130.70 × 9,951.90
  4. Step 4: Simplify right side
    10,753.80x = 160,531,113.33
  5. Step 5: Solve for x
    x = 160,531,113.33/10,753.80
  6. Step 6: Final answer
    x = 14,927.85

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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.