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Finding the Fourth Proportional to 53,935.71, 80,940.02 and 18,875.67

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Solution

The fourth proportional to 53,935.71, 80,940.02 and 18,875.67 is: 28,326.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,935.71 : 80,940.02 = 18,875.67 : x
  2. Step 2: Convert to fraction form
    53,935.71/80,940.02 = 18,875.67/x
  3. Step 3: Cross multiply
    53,935.71x = 80,940.02 × 18,875.67
  4. Step 4: Simplify right side
    53,935.71x = 1,527,797,012.94
  5. Step 5: Solve for x
    x = 1,527,797,012.94/53,935.71
  6. Step 6: Final answer
    x = 28,326.26

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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.