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Finding the Fourth Proportional to 5,707.22, 7,871.01 and 3,717.05

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Solution

The fourth proportional to 5,707.22, 7,871.01 and 3,717.05 is: 5,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.22 : 7,871.01 = 3,717.05 : x
  2. Step 2: Convert to fraction form
    5,707.22/7,871.01 = 3,717.05/x
  3. Step 3: Cross multiply
    5,707.22x = 7,871.01 × 3,717.05
  4. Step 4: Simplify right side
    5,707.22x = 29,256,937.72
  5. Step 5: Solve for x
    x = 29,256,937.72/5,707.22
  6. Step 6: Final answer
    x = 5,126.30

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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.