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Finding the Fourth Proportional to 8,881.91, 13,323.21 and 2,642.13

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Solution

The fourth proportional to 8,881.91, 13,323.21 and 2,642.13 is: 3,963.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.91 : 13,323.21 = 2,642.13 : x
  2. Step 2: Convert to fraction form
    8,881.91/13,323.21 = 2,642.13/x
  3. Step 3: Cross multiply
    8,881.91x = 13,323.21 × 2,642.13
  4. Step 4: Simplify right side
    8,881.91x = 35,201,612.89
  5. Step 5: Solve for x
    x = 35,201,612.89/8,881.91
  6. Step 6: Final answer
    x = 3,963.29

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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.