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Finding the Fourth Proportional to 11,155.52, 15,395.04 and 6,188.48

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Solution

The fourth proportional to 11,155.52, 15,395.04 and 6,188.48 is: 8,540.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.52 : 15,395.04 = 6,188.48 : x
  2. Step 2: Convert to fraction form
    11,155.52/15,395.04 = 6,188.48/x
  3. Step 3: Cross multiply
    11,155.52x = 15,395.04 × 6,188.48
  4. Step 4: Simplify right side
    11,155.52x = 95,271,897.14
  5. Step 5: Solve for x
    x = 95,271,897.14/11,155.52
  6. Step 6: Final answer
    x = 8,540.34

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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.