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Finding the Fourth Proportional to 27,321.52, 37,706.52 and 16,718.20

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Solution

The fourth proportional to 27,321.52, 37,706.52 and 16,718.20 is: 23,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321.52 : 37,706.52 = 16,718.20 : x
  2. Step 2: Convert to fraction form
    27,321.52/37,706.52 = 16,718.20/x
  3. Step 3: Cross multiply
    27,321.52x = 37,706.52 × 16,718.20
  4. Step 4: Simplify right side
    27,321.52x = 630,385,142.66
  5. Step 5: Solve for x
    x = 630,385,142.66/27,321.52
  6. Step 6: Final answer
    x = 23,072.84

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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.