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Finding the Fourth Proportional to 41,907.76, 62,837.84 and 13,820.16

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Solution

The fourth proportional to 41,907.76, 62,837.84 and 13,820.16 is: 20,722.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,907.76 : 62,837.84 = 13,820.16 : x
  2. Step 2: Convert to fraction form
    41,907.76/62,837.84 = 13,820.16/x
  3. Step 3: Cross multiply
    41,907.76x = 62,837.84 × 13,820.16
  4. Step 4: Simplify right side
    41,907.76x = 868,429,002.85
  5. Step 5: Solve for x
    x = 868,429,002.85/41,907.76
  6. Step 6: Final answer
    x = 20,722.39

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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.