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Finding the Fourth Proportional to 62,263, 85,922.96 and 39,907

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Solution

The fourth proportional to 62,263, 85,922.96 and 39,907 is: 55,071.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,263 : 85,922.96 = 39,907 : x
  2. Step 2: Convert to fraction form
    62,263/85,922.96 = 39,907/x
  3. Step 3: Cross multiply
    62,263x = 85,922.96 × 39,907
  4. Step 4: Simplify right side
    62,263x = 3,428,927,564.72
  5. Step 5: Solve for x
    x = 3,428,927,564.72/62,263
  6. Step 6: Final answer
    x = 55,071.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.