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Finding the Fourth Proportional to 25,433.66, 38,150.50 and 7,903.50

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Solution

The fourth proportional to 25,433.66, 38,150.50 and 7,903.50 is: 11,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,433.66 : 38,150.50 = 7,903.50 : x
  2. Step 2: Convert to fraction form
    25,433.66/38,150.50 = 7,903.50/x
  3. Step 3: Cross multiply
    25,433.66x = 38,150.50 × 7,903.50
  4. Step 4: Simplify right side
    25,433.66x = 301,522,476.75
  5. Step 5: Solve for x
    x = 301,522,476.75/25,433.66
  6. Step 6: Final answer
    x = 11,855.25

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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.