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Finding the Fourth Proportional to 16,485.36, 24,736.08 and 7,718.64

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Solution

The fourth proportional to 16,485.36, 24,736.08 and 7,718.64 is: 11,581.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,485.36 : 24,736.08 = 7,718.64 : x
  2. Step 2: Convert to fraction form
    16,485.36/24,736.08 = 7,718.64/x
  3. Step 3: Cross multiply
    16,485.36x = 24,736.08 × 7,718.64
  4. Step 4: Simplify right side
    16,485.36x = 190,928,896.53
  5. Step 5: Solve for x
    x = 190,928,896.53/16,485.36
  6. Step 6: Final answer
    x = 11,581.72

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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.