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Finding the Fourth Proportional to 15,000.96, 20,676.48 and 11,268.48

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Solution

The fourth proportional to 15,000.96, 20,676.48 and 11,268.48 is: 15,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000.96 : 20,676.48 = 11,268.48 : x
  2. Step 2: Convert to fraction form
    15,000.96/20,676.48 = 11,268.48/x
  3. Step 3: Cross multiply
    15,000.96x = 20,676.48 × 11,268.48
  4. Step 4: Simplify right side
    15,000.96x = 232,992,501.35
  5. Step 5: Solve for x
    x = 232,992,501.35/15,000.96
  6. Step 6: Final answer
    x = 15,531.84

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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.