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Finding the Fourth Proportional to 25,797.70, 38,660.10 and 15,907.60

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Solution

The fourth proportional to 25,797.70, 38,660.10 and 15,907.60 is: 23,838.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,797.70 : 38,660.10 = 15,907.60 : x
  2. Step 2: Convert to fraction form
    25,797.70/38,660.10 = 15,907.60/x
  3. Step 3: Cross multiply
    25,797.70x = 38,660.10 × 15,907.60
  4. Step 4: Simplify right side
    25,797.70x = 614,989,406.76
  5. Step 5: Solve for x
    x = 614,989,406.76/25,797.70
  6. Step 6: Final answer
    x = 23,838.92

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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.