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Finding the Fourth Proportional to 5,668.97, 7,820.07 and 3,621.03

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Solution

The fourth proportional to 5,668.97, 7,820.07 and 3,621.03 is: 4,995.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,668.97 : 7,820.07 = 3,621.03 : x
  2. Step 2: Convert to fraction form
    5,668.97/7,820.07 = 3,621.03/x
  3. Step 3: Cross multiply
    5,668.97x = 7,820.07 × 3,621.03
  4. Step 4: Simplify right side
    5,668.97x = 28,316,708.07
  5. Step 5: Solve for x
    x = 28,316,708.07/5,668.97
  6. Step 6: Final answer
    x = 4,995.04

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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.