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Finding the Fourth Proportional to 15,968.55, 22,036.47 and 8,894.82

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Solution

The fourth proportional to 15,968.55, 22,036.47 and 8,894.82 is: 12,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,968.55 : 22,036.47 = 8,894.82 : x
  2. Step 2: Convert to fraction form
    15,968.55/22,036.47 = 8,894.82/x
  3. Step 3: Cross multiply
    15,968.55x = 22,036.47 × 8,894.82
  4. Step 4: Simplify right side
    15,968.55x = 196,010,434.09
  5. Step 5: Solve for x
    x = 196,010,434.09/15,968.55
  6. Step 6: Final answer
    x = 12,274.78

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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.