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Finding the Fourth Proportional to 25,107.17, 37,635.80 and 12,588.99

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Solution

The fourth proportional to 25,107.17, 37,635.80 and 12,588.99 is: 18,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,107.17 : 37,635.80 = 12,588.99 : x
  2. Step 2: Convert to fraction form
    25,107.17/37,635.80 = 12,588.99/x
  3. Step 3: Cross multiply
    25,107.17x = 37,635.80 × 12,588.99
  4. Step 4: Simplify right side
    25,107.17x = 473,796,505.76
  5. Step 5: Solve for x
    x = 473,796,505.76/25,107.17
  6. Step 6: Final answer
    x = 18,870.97

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