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Finding the Fourth Proportional to 10,961.52, 15,126.08 and 6,244.88

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Solution

The fourth proportional to 10,961.52, 15,126.08 and 6,244.88 is: 8,617.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.52 : 15,126.08 = 6,244.88 : x
  2. Step 2: Convert to fraction form
    10,961.52/15,126.08 = 6,244.88/x
  3. Step 3: Cross multiply
    10,961.52x = 15,126.08 × 6,244.88
  4. Step 4: Simplify right side
    10,961.52x = 94,460,554.47
  5. Step 5: Solve for x
    x = 94,460,554.47/10,961.52
  6. Step 6: Final answer
    x = 8,617.47

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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.