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Finding the Fourth Proportional to 8,871.08, 13,306.62 and 4,253

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Solution

The fourth proportional to 8,871.08, 13,306.62 and 4,253 is: 6,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.08 : 13,306.62 = 4,253 : x
  2. Step 2: Convert to fraction form
    8,871.08/13,306.62 = 4,253/x
  3. Step 3: Cross multiply
    8,871.08x = 13,306.62 × 4,253
  4. Step 4: Simplify right side
    8,871.08x = 56,593,054.86
  5. Step 5: Solve for x
    x = 56,593,054.86/8,871.08
  6. Step 6: Final answer
    x = 6,379.50

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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.