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Finding the Fourth Proportional to 15,137.28, 20,886.28 and 8,848.44

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Solution

The fourth proportional to 15,137.28, 20,886.28 and 8,848.44 is: 12,209.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,137.28 : 20,886.28 = 8,848.44 : x
  2. Step 2: Convert to fraction form
    15,137.28/20,886.28 = 8,848.44/x
  3. Step 3: Cross multiply
    15,137.28x = 20,886.28 × 8,848.44
  4. Step 4: Simplify right side
    15,137.28x = 184,810,995.40
  5. Step 5: Solve for x
    x = 184,810,995.40/15,137.28
  6. Step 6: Final answer
    x = 12,209.00

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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.