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Finding the Fourth Proportional to 25,859.53, 38,797.65 and 12,702.67

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Solution

The fourth proportional to 25,859.53, 38,797.65 and 12,702.67 is: 19,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,859.53 : 38,797.65 = 12,702.67 : x
  2. Step 2: Convert to fraction form
    25,859.53/38,797.65 = 12,702.67/x
  3. Step 3: Cross multiply
    25,859.53x = 38,797.65 × 12,702.67
  4. Step 4: Simplify right side
    25,859.53x = 492,833,744.73
  5. Step 5: Solve for x
    x = 492,833,744.73/25,859.53
  6. Step 6: Final answer
    x = 19,058.11

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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.