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Finding the Fourth Proportional to 18,525.16, 27,787.74 and 10,783.72

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Solution

The fourth proportional to 18,525.16, 27,787.74 and 10,783.72 is: 16,175.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.16 : 27,787.74 = 10,783.72 : x
  2. Step 2: Convert to fraction form
    18,525.16/27,787.74 = 10,783.72/x
  3. Step 3: Cross multiply
    18,525.16x = 27,787.74 × 10,783.72
  4. Step 4: Simplify right side
    18,525.16x = 299,655,207.59
  5. Step 5: Solve for x
    x = 299,655,207.59/18,525.16
  6. Step 6: Final answer
    x = 16,175.58

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Similar ratio
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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.