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Finding the Fourth Proportional to 48,412.99, 66,872.99 and 37,220.11

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Solution

The fourth proportional to 48,412.99, 66,872.99 and 37,220.11 is: 51,412.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,412.99 : 66,872.99 = 37,220.11 : x
  2. Step 2: Convert to fraction form
    48,412.99/66,872.99 = 37,220.11/x
  3. Step 3: Cross multiply
    48,412.99x = 66,872.99 × 37,220.11
  4. Step 4: Simplify right side
    48,412.99x = 2,489,019,969.70
  5. Step 5: Solve for x
    x = 2,489,019,969.70/48,412.99
  6. Step 6: Final answer
    x = 51,412.23

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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.