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Finding the Fourth Proportional to 15,968.64, 22,034.88 and 8,893.92

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Solution

The fourth proportional to 15,968.64, 22,034.88 and 8,893.92 is: 12,272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,968.64 : 22,034.88 = 8,893.92 : x
  2. Step 2: Convert to fraction form
    15,968.64/22,034.88 = 8,893.92/x
  3. Step 3: Cross multiply
    15,968.64x = 22,034.88 × 8,893.92
  4. Step 4: Simplify right side
    15,968.64x = 195,976,459.93
  5. Step 5: Solve for x
    x = 195,976,459.93/15,968.64
  6. Step 6: Final answer
    x = 12,272.58

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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.