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Finding the Fourth Proportional to 62,208.70, 93,313.05 and 20,655.70

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Solution

The fourth proportional to 62,208.70, 93,313.05 and 20,655.70 is: 30,983.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,208.70 : 93,313.05 = 20,655.70 : x
  2. Step 2: Convert to fraction form
    62,208.70/93,313.05 = 20,655.70/x
  3. Step 3: Cross multiply
    62,208.70x = 93,313.05 × 20,655.70
  4. Step 4: Simplify right side
    62,208.70x = 1,927,446,366.89
  5. Step 5: Solve for x
    x = 1,927,446,366.89/62,208.70
  6. Step 6: Final answer
    x = 30,983.55

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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.