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Finding the Fourth Proportional to 58,636.81, 87,938.30 and 28,632.54

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Solution

The fourth proportional to 58,636.81, 87,938.30 and 28,632.54 is: 42,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,636.81 : 87,938.30 = 28,632.54 : x
  2. Step 2: Convert to fraction form
    58,636.81/87,938.30 = 28,632.54/x
  3. Step 3: Cross multiply
    58,636.81x = 87,938.30 × 28,632.54
  4. Step 4: Simplify right side
    58,636.81x = 2,517,896,892.28
  5. Step 5: Solve for x
    x = 2,517,896,892.28/58,636.81
  6. Step 6: Final answer
    x = 42,940.55

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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.