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Finding the Fourth Proportional to 15,912.63, 23,869.08 and 4,820.19

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Solution

The fourth proportional to 15,912.63, 23,869.08 and 4,820.19 is: 7,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.63 : 23,869.08 = 4,820.19 : x
  2. Step 2: Convert to fraction form
    15,912.63/23,869.08 = 4,820.19/x
  3. Step 3: Cross multiply
    15,912.63x = 23,869.08 × 4,820.19
  4. Step 4: Simplify right side
    15,912.63x = 115,053,500.73
  5. Step 5: Solve for x
    x = 115,053,500.73/15,912.63
  6. Step 6: Final answer
    x = 7,230.33

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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.