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Finding the Fourth Proportional to 62,390.49, 93,529.83 and 22,920

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Solution

The fourth proportional to 62,390.49, 93,529.83 and 22,920 is: 34,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,390.49 : 93,529.83 = 22,920 : x
  2. Step 2: Convert to fraction form
    62,390.49/93,529.83 = 22,920/x
  3. Step 3: Cross multiply
    62,390.49x = 93,529.83 × 22,920
  4. Step 4: Simplify right side
    62,390.49x = 2,143,703,703.60
  5. Step 5: Solve for x
    x = 2,143,703,703.60/62,390.49
  6. Step 6: Final answer
    x = 34,359.46

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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.