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Finding the Fourth Proportional to 8,764.16, 13,146.36 and 4,893.20

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Solution

The fourth proportional to 8,764.16, 13,146.36 and 4,893.20 is: 7,339.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.16 : 13,146.36 = 4,893.20 : x
  2. Step 2: Convert to fraction form
    8,764.16/13,146.36 = 4,893.20/x
  3. Step 3: Cross multiply
    8,764.16x = 13,146.36 × 4,893.20
  4. Step 4: Simplify right side
    8,764.16x = 64,327,768.75
  5. Step 5: Solve for x
    x = 64,327,768.75/8,764.16
  6. Step 6: Final answer
    x = 7,339.87

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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.