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Finding the Fourth Proportional to 6,988.46, 9,644.24 and 3,801.93

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Solution

The fourth proportional to 6,988.46, 9,644.24 and 3,801.93 is: 5,246.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.46 : 9,644.24 = 3,801.93 : x
  2. Step 2: Convert to fraction form
    6,988.46/9,644.24 = 3,801.93/x
  3. Step 3: Cross multiply
    6,988.46x = 9,644.24 × 3,801.93
  4. Step 4: Simplify right side
    6,988.46x = 36,666,706.37
  5. Step 5: Solve for x
    x = 36,666,706.37/6,988.46
  6. Step 6: Final answer
    x = 5,246.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.