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Finding the Fourth Proportional to 9,613.70, 14,420.55 and 5,903.90

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Solution

The fourth proportional to 9,613.70, 14,420.55 and 5,903.90 is: 8,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,613.70 : 14,420.55 = 5,903.90 : x
  2. Step 2: Convert to fraction form
    9,613.70/14,420.55 = 5,903.90/x
  3. Step 3: Cross multiply
    9,613.70x = 14,420.55 × 5,903.90
  4. Step 4: Simplify right side
    9,613.70x = 85,137,485.15
  5. Step 5: Solve for x
    x = 85,137,485.15/9,613.70
  6. Step 6: Final answer
    x = 8,855.85

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Similar ratio
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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.