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Finding the Fourth Proportional to 51,496.45, 77,255.71 and 15,956.99

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Solution

The fourth proportional to 51,496.45, 77,255.71 and 15,956.99 is: 23,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,496.45 : 77,255.71 = 15,956.99 : x
  2. Step 2: Convert to fraction form
    51,496.45/77,255.71 = 15,956.99/x
  3. Step 3: Cross multiply
    51,496.45x = 77,255.71 × 15,956.99
  4. Step 4: Simplify right side
    51,496.45x = 1,232,768,455.45
  5. Step 5: Solve for x
    x = 1,232,768,455.45/51,496.45
  6. Step 6: Final answer
    x = 23,938.90

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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.