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Finding the Fourth Proportional to 54,946.80, 82,420.20 and 18,010.80

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Solution

The fourth proportional to 54,946.80, 82,420.20 and 18,010.80 is: 27,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,946.80 : 82,420.20 = 18,010.80 : x
  2. Step 2: Convert to fraction form
    54,946.80/82,420.20 = 18,010.80/x
  3. Step 3: Cross multiply
    54,946.80x = 82,420.20 × 18,010.80
  4. Step 4: Simplify right side
    54,946.80x = 1,484,453,738.16
  5. Step 5: Solve for x
    x = 1,484,453,738.16/54,946.80
  6. Step 6: Final answer
    x = 27,016.20

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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.