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Finding the Fourth Proportional to 16,485.93, 22,758.44 and 9,410.99

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Solution

The fourth proportional to 16,485.93, 22,758.44 and 9,410.99 is: 12,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,485.93 : 22,758.44 = 9,410.99 : x
  2. Step 2: Convert to fraction form
    16,485.93/22,758.44 = 9,410.99/x
  3. Step 3: Cross multiply
    16,485.93x = 22,758.44 × 9,410.99
  4. Step 4: Simplify right side
    16,485.93x = 214,179,360.99
  5. Step 5: Solve for x
    x = 214,179,360.99/16,485.93
  6. Step 6: Final answer
    x = 12,991.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.