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Finding the Fourth Proportional to 18,477.93, 25,507.95 and 11,772.75

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Solution

The fourth proportional to 18,477.93, 25,507.95 and 11,772.75 is: 16,251.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.93 : 25,507.95 = 11,772.75 : x
  2. Step 2: Convert to fraction form
    18,477.93/25,507.95 = 11,772.75/x
  3. Step 3: Cross multiply
    18,477.93x = 25,507.95 × 11,772.75
  4. Step 4: Simplify right side
    18,477.93x = 300,298,718.36
  5. Step 5: Solve for x
    x = 300,298,718.36/18,477.93
  6. Step 6: Final answer
    x = 16,251.75

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Half scale
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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.