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Finding the Fourth Proportional to 62,638.80, 93,852.60 and 31,006.68

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Solution

The fourth proportional to 62,638.80, 93,852.60 and 31,006.68 is: 46,457.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,638.80 : 93,852.60 = 31,006.68 : x
  2. Step 2: Convert to fraction form
    62,638.80/93,852.60 = 31,006.68/x
  3. Step 3: Cross multiply
    62,638.80x = 93,852.60 × 31,006.68
  4. Step 4: Simplify right side
    62,638.80x = 2,910,057,535.37
  5. Step 5: Solve for x
    x = 2,910,057,535.37/62,638.80
  6. Step 6: Final answer
    x = 46,457.75

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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.