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Finding the Fourth Proportional to 18,574.54, 27,861.71 and 4,534.64

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Solution

The fourth proportional to 18,574.54, 27,861.71 and 4,534.64 is: 6,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.54 : 27,861.71 = 4,534.64 : x
  2. Step 2: Convert to fraction form
    18,574.54/27,861.71 = 4,534.64/x
  3. Step 3: Cross multiply
    18,574.54x = 27,861.71 × 4,534.64
  4. Step 4: Simplify right side
    18,574.54x = 126,342,732.31
  5. Step 5: Solve for x
    x = 126,342,732.31/18,574.54
  6. Step 6: Final answer
    x = 6,801.93

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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.