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Finding the Fourth Proportional to 64,850.53, 97,278.78 and 19,868.67

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Solution

The fourth proportional to 64,850.53, 97,278.78 and 19,868.67 is: 29,803.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,850.53 : 97,278.78 = 19,868.67 : x
  2. Step 2: Convert to fraction form
    64,850.53/97,278.78 = 19,868.67/x
  3. Step 3: Cross multiply
    64,850.53x = 97,278.78 × 19,868.67
  4. Step 4: Simplify right side
    64,850.53x = 1,932,799,722.85
  5. Step 5: Solve for x
    x = 1,932,799,722.85/64,850.53
  6. Step 6: Final answer
    x = 29,803.91

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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.