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Finding the Fourth Proportional to 13,974.48, 20,956.08 and 5,652.96

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Solution

The fourth proportional to 13,974.48, 20,956.08 and 5,652.96 is: 8,477.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.48 : 20,956.08 = 5,652.96 : x
  2. Step 2: Convert to fraction form
    13,974.48/20,956.08 = 5,652.96/x
  3. Step 3: Cross multiply
    13,974.48x = 20,956.08 × 5,652.96
  4. Step 4: Simplify right side
    13,974.48x = 118,463,882.00
  5. Step 5: Solve for x
    x = 118,463,882.00/13,974.48
  6. Step 6: Final answer
    x = 8,477.16

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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.