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Finding the Fourth Proportional to 8,865.96, 13,290.72 and 4,967.63

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Solution

The fourth proportional to 8,865.96, 13,290.72 and 4,967.63 is: 7,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.96 : 13,290.72 = 4,967.63 : x
  2. Step 2: Convert to fraction form
    8,865.96/13,290.72 = 4,967.63/x
  3. Step 3: Cross multiply
    8,865.96x = 13,290.72 × 4,967.63
  4. Step 4: Simplify right side
    8,865.96x = 66,023,379.39
  5. Step 5: Solve for x
    x = 66,023,379.39/8,865.96
  6. Step 6: Final answer
    x = 7,446.84

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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.