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Finding the Fourth Proportional to 5,911.96, 8,818.13 and 5,503.72

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Solution

The fourth proportional to 5,911.96, 8,818.13 and 5,503.72 is: 8,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.96 : 8,818.13 = 5,503.72 : x
  2. Step 2: Convert to fraction form
    5,911.96/8,818.13 = 5,503.72/x
  3. Step 3: Cross multiply
    5,911.96x = 8,818.13 × 5,503.72
  4. Step 4: Simplify right side
    5,911.96x = 48,532,518.44
  5. Step 5: Solve for x
    x = 48,532,518.44/5,911.96
  6. Step 6: Final answer
    x = 8,209.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.