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Finding the Fourth Proportional to 6,361.56, 8,779.77 and 5,297.74

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Solution

The fourth proportional to 6,361.56, 8,779.77 and 5,297.74 is: 7,311.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,361.56 : 8,779.77 = 5,297.74 : x
  2. Step 2: Convert to fraction form
    6,361.56/8,779.77 = 5,297.74/x
  3. Step 3: Cross multiply
    6,361.56x = 8,779.77 × 5,297.74
  4. Step 4: Simplify right side
    6,361.56x = 46,512,916.77
  5. Step 5: Solve for x
    x = 46,512,916.77/6,361.56
  6. Step 6: Final answer
    x = 7,311.56

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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.