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Finding the Fourth Proportional to 14,999.67, 20,697.77 and 8,284.97

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Solution

The fourth proportional to 14,999.67, 20,697.77 and 8,284.97 is: 11,432.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.67 : 20,697.77 = 8,284.97 : x
  2. Step 2: Convert to fraction form
    14,999.67/20,697.77 = 8,284.97/x
  3. Step 3: Cross multiply
    14,999.67x = 20,697.77 × 8,284.97
  4. Step 4: Simplify right side
    14,999.67x = 171,480,258.60
  5. Step 5: Solve for x
    x = 171,480,258.60/14,999.67
  6. Step 6: Final answer
    x = 11,432.27

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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.