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Finding the Fourth Proportional to 15,969.72, 22,036.95 and 9,255.63

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Solution

The fourth proportional to 15,969.72, 22,036.95 and 9,255.63 is: 12,772.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,969.72 : 22,036.95 = 9,255.63 : x
  2. Step 2: Convert to fraction form
    15,969.72/22,036.95 = 9,255.63/x
  3. Step 3: Cross multiply
    15,969.72x = 22,036.95 × 9,255.63
  4. Step 4: Simplify right side
    15,969.72x = 203,965,855.53
  5. Step 5: Solve for x
    x = 203,965,855.53/15,969.72
  6. Step 6: Final answer
    x = 12,772.04

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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.