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Finding the Fourth Proportional to 62,470.50, 93,715.50 and 20,340.63

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Solution

The fourth proportional to 62,470.50, 93,715.50 and 20,340.63 is: 30,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,470.50 : 93,715.50 = 20,340.63 : x
  2. Step 2: Convert to fraction form
    62,470.50/93,715.50 = 20,340.63/x
  3. Step 3: Cross multiply
    62,470.50x = 93,715.50 × 20,340.63
  4. Step 4: Simplify right side
    62,470.50x = 1,906,232,310.77
  5. Step 5: Solve for x
    x = 1,906,232,310.77/62,470.50
  6. Step 6: Final answer
    x = 30,514.12

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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.