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Finding the Fourth Proportional to 40,672.50, 61,012.74 and 14,020.62

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Solution

The fourth proportional to 40,672.50, 61,012.74 and 14,020.62 is: 21,032.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,672.50 : 61,012.74 = 14,020.62 : x
  2. Step 2: Convert to fraction form
    40,672.50/61,012.74 = 14,020.62/x
  3. Step 3: Cross multiply
    40,672.50x = 61,012.74 × 14,020.62
  4. Step 4: Simplify right side
    40,672.50x = 855,436,442.70
  5. Step 5: Solve for x
    x = 855,436,442.70/40,672.50
  6. Step 6: Final answer
    x = 21,032.31

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1.5x scale

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.