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Finding the Fourth Proportional to 11,261.88, 15,541.40 and 6,293.88

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Solution

The fourth proportional to 11,261.88, 15,541.40 and 6,293.88 is: 8,685.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.88 : 15,541.40 = 6,293.88 : x
  2. Step 2: Convert to fraction form
    11,261.88/15,541.40 = 6,293.88/x
  3. Step 3: Cross multiply
    11,261.88x = 15,541.40 × 6,293.88
  4. Step 4: Simplify right side
    11,261.88x = 97,815,706.63
  5. Step 5: Solve for x
    x = 97,815,706.63/11,261.88
  6. Step 6: Final answer
    x = 8,685.56

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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.