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Finding the Fourth Proportional to 13,706.01, 20,559.01 and 3,317.76

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Solution

The fourth proportional to 13,706.01, 20,559.01 and 3,317.76 is: 4,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,706.01 : 20,559.01 = 3,317.76 : x
  2. Step 2: Convert to fraction form
    13,706.01/20,559.01 = 3,317.76/x
  3. Step 3: Cross multiply
    13,706.01x = 20,559.01 × 3,317.76
  4. Step 4: Simplify right side
    13,706.01x = 68,209,861.02
  5. Step 5: Solve for x
    x = 68,209,861.02/13,706.01
  6. Step 6: Final answer
    x = 4,976.64

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Double scale
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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.