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Finding the Fourth Proportional to 25,790.00, 38,669.94 and 8,015.84

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Solution

The fourth proportional to 25,790.00, 38,669.94 and 8,015.84 is: 12,019.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,790.00 : 38,669.94 = 8,015.84 : x
  2. Step 2: Convert to fraction form
    25,790.00/38,669.94 = 8,015.84/x
  3. Step 3: Cross multiply
    25,790.00x = 38,669.94 × 8,015.84
  4. Step 4: Simplify right side
    25,790.00x = 309,971,858.50
  5. Step 5: Solve for x
    x = 309,971,858.50/25,790.00
  6. Step 6: Final answer
    x = 12,019.07

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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.