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Finding the Fourth Proportional to 11,054.61, 15,256.04 and 6,340.41

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Solution

The fourth proportional to 11,054.61, 15,256.04 and 6,340.41 is: 8,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,054.61 : 15,256.04 = 6,340.41 : x
  2. Step 2: Convert to fraction form
    11,054.61/15,256.04 = 6,340.41/x
  3. Step 3: Cross multiply
    11,054.61x = 15,256.04 × 6,340.41
  4. Step 4: Simplify right side
    11,054.61x = 96,729,548.58
  5. Step 5: Solve for x
    x = 96,729,548.58/11,054.61
  6. Step 6: Final answer
    x = 8,750.15

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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.