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Finding the Fourth Proportional to 8,871.84, 12,242.52 and 5,334.48

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Solution

The fourth proportional to 8,871.84, 12,242.52 and 5,334.48 is: 7,361.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.84 : 12,242.52 = 5,334.48 : x
  2. Step 2: Convert to fraction form
    8,871.84/12,242.52 = 5,334.48/x
  3. Step 3: Cross multiply
    8,871.84x = 12,242.52 × 5,334.48
  4. Step 4: Simplify right side
    8,871.84x = 65,307,478.09
  5. Step 5: Solve for x
    x = 65,307,478.09/8,871.84
  6. Step 6: Final answer
    x = 7,361.21

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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.