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Finding the Fourth Proportional to 16,728.42, 23,085.22 and 9,276.42

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Solution

The fourth proportional to 16,728.42, 23,085.22 and 9,276.42 is: 12,801.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.42 : 23,085.22 = 9,276.42 : x
  2. Step 2: Convert to fraction form
    16,728.42/23,085.22 = 9,276.42/x
  3. Step 3: Cross multiply
    16,728.42x = 23,085.22 × 9,276.42
  4. Step 4: Simplify right side
    16,728.42x = 214,148,277.42
  5. Step 5: Solve for x
    x = 214,148,277.42/16,728.42
  6. Step 6: Final answer
    x = 12,801.46

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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.