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Finding the Fourth Proportional to 6,361.74, 8,779.65 and 3,530.04

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Solution

The fourth proportional to 6,361.74, 8,779.65 and 3,530.04 is: 4,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.74 : 8,779.65 = 3,530.04 : x
  2. Step 2: Convert to fraction form
    6,361.74/8,779.65 = 3,530.04/x
  3. Step 3: Cross multiply
    6,361.74x = 8,779.65 × 3,530.04
  4. Step 4: Simplify right side
    6,361.74x = 30,992,515.69
  5. Step 5: Solve for x
    x = 30,992,515.69/6,361.74
  6. Step 6: Final answer
    x = 4,871.70

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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.