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Finding the Fourth Proportional to 13,720.73, 20,581.09 and 6,323.00

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Solution

The fourth proportional to 13,720.73, 20,581.09 and 6,323.00 is: 9,484.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.73 : 20,581.09 = 6,323.00 : x
  2. Step 2: Convert to fraction form
    13,720.73/20,581.09 = 6,323.00/x
  3. Step 3: Cross multiply
    13,720.73x = 20,581.09 × 6,323.00
  4. Step 4: Simplify right side
    13,720.73x = 130,134,113.36
  5. Step 5: Solve for x
    x = 130,134,113.36/13,720.73
  6. Step 6: Final answer
    x = 9,484.49

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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.