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Finding the Fourth Proportional to 8,818.74, 13,221.62 and 4,204.98

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Solution

The fourth proportional to 8,818.74, 13,221.62 and 4,204.98 is: 6,304.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.74 : 13,221.62 = 4,204.98 : x
  2. Step 2: Convert to fraction form
    8,818.74/13,221.62 = 4,204.98/x
  3. Step 3: Cross multiply
    8,818.74x = 13,221.62 × 4,204.98
  4. Step 4: Simplify right side
    8,818.74x = 55,596,647.67
  5. Step 5: Solve for x
    x = 55,596,647.67/8,818.74
  6. Step 6: Final answer
    x = 6,304.38

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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.