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Finding the Fourth Proportional to 28,012.20, 41,969.70 and 24,124.20

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Solution

The fourth proportional to 28,012.20, 41,969.70 and 24,124.20 is: 36,144.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.20 : 41,969.70 = 24,124.20 : x
  2. Step 2: Convert to fraction form
    28,012.20/41,969.70 = 24,124.20/x
  3. Step 3: Cross multiply
    28,012.20x = 41,969.70 × 24,124.20
  4. Step 4: Simplify right side
    28,012.20x = 1,012,485,436.74
  5. Step 5: Solve for x
    x = 1,012,485,436.74/28,012.20
  6. Step 6: Final answer
    x = 36,144.45

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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.