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Finding the Fourth Proportional to 11,615.55, 16,029.27 and 6,310.46

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Solution

The fourth proportional to 11,615.55, 16,029.27 and 6,310.46 is: 8,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.55 : 16,029.27 = 6,310.46 : x
  2. Step 2: Convert to fraction form
    11,615.55/16,029.27 = 6,310.46/x
  3. Step 3: Cross multiply
    11,615.55x = 16,029.27 × 6,310.46
  4. Step 4: Simplify right side
    11,615.55x = 101,151,987.02
  5. Step 5: Solve for x
    x = 101,151,987.02/11,615.55
  6. Step 6: Final answer
    x = 8,708.33

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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.