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Finding the Fourth Proportional to 6,361.80, 8,779.68 and 3,567.24

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Solution

The fourth proportional to 6,361.80, 8,779.68 and 3,567.24 is: 4,923.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.80 : 8,779.68 = 3,567.24 : x
  2. Step 2: Convert to fraction form
    6,361.80/8,779.68 = 3,567.24/x
  3. Step 3: Cross multiply
    6,361.80x = 8,779.68 × 3,567.24
  4. Step 4: Simplify right side
    6,361.80x = 31,319,225.68
  5. Step 5: Solve for x
    x = 31,319,225.68/6,361.80
  6. Step 6: Final answer
    x = 4,923.01

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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.