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Finding the Fourth Proportional to 62,630.42, 93,944.54 and 21,077.42

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Solution

The fourth proportional to 62,630.42, 93,944.54 and 21,077.42 is: 31,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,630.42 : 93,944.54 = 21,077.42 : x
  2. Step 2: Convert to fraction form
    62,630.42/93,944.54 = 21,077.42/x
  3. Step 3: Cross multiply
    62,630.42x = 93,944.54 × 21,077.42
  4. Step 4: Simplify right side
    62,630.42x = 1,980,108,109.26
  5. Step 5: Solve for x
    x = 1,980,108,109.26/62,630.42
  6. Step 6: Final answer
    x = 31,615.76

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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.