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Finding the Fourth Proportional to 8,941.86, 13,415.22 and 6,361.20

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Solution

The fourth proportional to 8,941.86, 13,415.22 and 6,361.20 is: 9,543.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.86 : 13,415.22 = 6,361.20 : x
  2. Step 2: Convert to fraction form
    8,941.86/13,415.22 = 6,361.20/x
  3. Step 3: Cross multiply
    8,941.86x = 13,415.22 × 6,361.20
  4. Step 4: Simplify right side
    8,941.86x = 85,336,897.46
  5. Step 5: Solve for x
    x = 85,336,897.46/8,941.86
  6. Step 6: Final answer
    x = 9,543.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.