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Finding the Fourth Proportional to 9,012.49, 12,436.49 and 5,234.45

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Solution

The fourth proportional to 9,012.49, 12,436.49 and 5,234.45 is: 7,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.49 : 12,436.49 = 5,234.45 : x
  2. Step 2: Convert to fraction form
    9,012.49/12,436.49 = 5,234.45/x
  3. Step 3: Cross multiply
    9,012.49x = 12,436.49 × 5,234.45
  4. Step 4: Simplify right side
    9,012.49x = 65,098,135.98
  5. Step 5: Solve for x
    x = 65,098,135.98/9,012.49
  6. Step 6: Final answer
    x = 7,223.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.