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Finding the Fourth Proportional to 56,620.30, 84,908.85 and 17,164.30

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Solution

The fourth proportional to 56,620.30, 84,908.85 and 17,164.30 is: 25,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,620.30 : 84,908.85 = 17,164.30 : x
  2. Step 2: Convert to fraction form
    56,620.30/84,908.85 = 17,164.30/x
  3. Step 3: Cross multiply
    56,620.30x = 84,908.85 × 17,164.30
  4. Step 4: Simplify right side
    56,620.30x = 1,457,400,974.06
  5. Step 5: Solve for x
    x = 1,457,400,974.06/56,620.30
  6. Step 6: Final answer
    x = 25,739.90

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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.