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Finding the Fourth Proportional to 5,571.32, 7,705.14 and 4,871.48

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Solution

The fourth proportional to 5,571.32, 7,705.14 and 4,871.48 is: 6,737.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571.32 : 7,705.14 = 4,871.48 : x
  2. Step 2: Convert to fraction form
    5,571.32/7,705.14 = 4,871.48/x
  3. Step 3: Cross multiply
    5,571.32x = 7,705.14 × 4,871.48
  4. Step 4: Simplify right side
    5,571.32x = 37,535,435.41
  5. Step 5: Solve for x
    x = 37,535,435.41/5,571.32
  6. Step 6: Final answer
    x = 6,737.26

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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.