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Finding the Fourth Proportional to 62,362.81, 93,545.03 and 20,809.81

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Solution

The fourth proportional to 62,362.81, 93,545.03 and 20,809.81 is: 31,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,362.81 : 93,545.03 = 20,809.81 : x
  2. Step 2: Convert to fraction form
    62,362.81/93,545.03 = 20,809.81/x
  3. Step 3: Cross multiply
    62,362.81x = 93,545.03 × 20,809.81
  4. Step 4: Simplify right side
    62,362.81x = 1,946,654,300.74
  5. Step 5: Solve for x
    x = 1,946,654,300.74/62,362.81
  6. Step 6: Final answer
    x = 31,214.99

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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.