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Finding the Fourth Proportional to 13,736.99, 20,606.99 and 4,374.81

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Solution

The fourth proportional to 13,736.99, 20,606.99 and 4,374.81 is: 6,562.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.99 : 20,606.99 = 4,374.81 : x
  2. Step 2: Convert to fraction form
    13,736.99/20,606.99 = 4,374.81/x
  3. Step 3: Cross multiply
    13,736.99x = 20,606.99 × 4,374.81
  4. Step 4: Simplify right side
    13,736.99x = 90,151,644.05
  5. Step 5: Solve for x
    x = 90,151,644.05/13,736.99
  6. Step 6: Final answer
    x = 6,562.69

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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.