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Finding the Fourth Proportional to 27,607.20, 41,410.80 and 14,485.20

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Solution

The fourth proportional to 27,607.20, 41,410.80 and 14,485.20 is: 21,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,607.20 : 41,410.80 = 14,485.20 : x
  2. Step 2: Convert to fraction form
    27,607.20/41,410.80 = 14,485.20/x
  3. Step 3: Cross multiply
    27,607.20x = 41,410.80 × 14,485.20
  4. Step 4: Simplify right side
    27,607.20x = 599,843,720.16
  5. Step 5: Solve for x
    x = 599,843,720.16/27,607.20
  6. Step 6: Final answer
    x = 21,727.80

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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.