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Finding the Fourth Proportional to 10,835.70, 16,265.70 and 5,902.80

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Solution

The fourth proportional to 10,835.70, 16,265.70 and 5,902.80 is: 8,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,835.70 : 16,265.70 = 5,902.80 : x
  2. Step 2: Convert to fraction form
    10,835.70/16,265.70 = 5,902.80/x
  3. Step 3: Cross multiply
    10,835.70x = 16,265.70 × 5,902.80
  4. Step 4: Simplify right side
    10,835.70x = 96,013,173.96
  5. Step 5: Solve for x
    x = 96,013,173.96/10,835.70
  6. Step 6: Final answer
    x = 8,860.82

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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.