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Finding the Fourth Proportional to 7,801.03, 11,706.17 and 2,874.12

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Solution

The fourth proportional to 7,801.03, 11,706.17 and 2,874.12 is: 4,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.03 : 11,706.17 = 2,874.12 : x
  2. Step 2: Convert to fraction form
    7,801.03/11,706.17 = 2,874.12/x
  3. Step 3: Cross multiply
    7,801.03x = 11,706.17 × 2,874.12
  4. Step 4: Simplify right side
    7,801.03x = 33,644,966.85
  5. Step 5: Solve for x
    x = 33,644,966.85/7,801.03
  6. Step 6: Final answer
    x = 4,312.89

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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.