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Finding the Fourth Proportional to 7,033.99, 9,706.79 and 3,890.18

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Solution

The fourth proportional to 7,033.99, 9,706.79 and 3,890.18 is: 5,368.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,033.99 : 9,706.79 = 3,890.18 : x
  2. Step 2: Convert to fraction form
    7,033.99/9,706.79 = 3,890.18/x
  3. Step 3: Cross multiply
    7,033.99x = 9,706.79 × 3,890.18
  4. Step 4: Simplify right side
    7,033.99x = 37,761,126.33
  5. Step 5: Solve for x
    x = 37,761,126.33/7,033.99
  6. Step 6: Final answer
    x = 5,368.38

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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.