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Finding the Fourth Proportional to 62,305.76, 93,424.08 and 20,730.08

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Solution

The fourth proportional to 62,305.76, 93,424.08 and 20,730.08 is: 31,083.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,305.76 : 93,424.08 = 20,730.08 : x
  2. Step 2: Convert to fraction form
    62,305.76/93,424.08 = 20,730.08/x
  3. Step 3: Cross multiply
    62,305.76x = 93,424.08 × 20,730.08
  4. Step 4: Simplify right side
    62,305.76x = 1,936,688,652.33
  5. Step 5: Solve for x
    x = 1,936,688,652.33/62,305.76
  6. Step 6: Final answer
    x = 31,083.62

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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.