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Finding the Fourth Proportional to 9,909.34, 14,855.20 and 5,961.80

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Solution

The fourth proportional to 9,909.34, 14,855.20 and 5,961.80 is: 8,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,909.34 : 14,855.20 = 5,961.80 : x
  2. Step 2: Convert to fraction form
    9,909.34/14,855.20 = 5,961.80/x
  3. Step 3: Cross multiply
    9,909.34x = 14,855.20 × 5,961.80
  4. Step 4: Simplify right side
    9,909.34x = 88,563,753.59
  5. Step 5: Solve for x
    x = 88,563,753.59/9,909.34
  6. Step 6: Final answer
    x = 8,937.40

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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.