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Finding the Fourth Proportional to 15,343.67, 23,015.51 and 4,815.32

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Solution

The fourth proportional to 15,343.67, 23,015.51 and 4,815.32 is: 7,222.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.67 : 23,015.51 = 4,815.32 : x
  2. Step 2: Convert to fraction form
    15,343.67/23,015.51 = 4,815.32/x
  3. Step 3: Cross multiply
    15,343.67x = 23,015.51 × 4,815.32
  4. Step 4: Simplify right side
    15,343.67x = 110,826,910.97
  5. Step 5: Solve for x
    x = 110,826,910.97/15,343.67
  6. Step 6: Final answer
    x = 7,222.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.