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Finding the Fourth Proportional to 25,376.94, 38,065.20 and 19,834.94

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Solution

The fourth proportional to 25,376.94, 38,065.20 and 19,834.94 is: 29,752.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,376.94 : 38,065.20 = 19,834.94 : x
  2. Step 2: Convert to fraction form
    25,376.94/38,065.20 = 19,834.94/x
  3. Step 3: Cross multiply
    25,376.94x = 38,065.20 × 19,834.94
  4. Step 4: Simplify right side
    25,376.94x = 755,020,858.91
  5. Step 5: Solve for x
    x = 755,020,858.91/25,376.94
  6. Step 6: Final answer
    x = 29,752.25

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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.