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Finding the Fourth Proportional to 45,382.50, 68,076.18 and 14,220.18

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Solution

The fourth proportional to 45,382.50, 68,076.18 and 14,220.18 is: 21,331.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,382.50 : 68,076.18 = 14,220.18 : x
  2. Step 2: Convert to fraction form
    45,382.50/68,076.18 = 14,220.18/x
  3. Step 3: Cross multiply
    45,382.50x = 68,076.18 × 14,220.18
  4. Step 4: Simplify right side
    45,382.50x = 968,055,533.31
  5. Step 5: Solve for x
    x = 968,055,533.31/45,382.50
  6. Step 6: Final answer
    x = 21,331.03

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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.