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Finding the Fourth Proportional to 54,369.26, 81,552.80 and 30,945.50

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Solution

The fourth proportional to 54,369.26, 81,552.80 and 30,945.50 is: 46,417.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,369.26 : 81,552.80 = 30,945.50 : x
  2. Step 2: Convert to fraction form
    54,369.26/81,552.80 = 30,945.50/x
  3. Step 3: Cross multiply
    54,369.26x = 81,552.80 × 30,945.50
  4. Step 4: Simplify right side
    54,369.26x = 2,523,692,172.40
  5. Step 5: Solve for x
    x = 2,523,692,172.40/54,369.26
  6. Step 6: Final answer
    x = 46,417.63

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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.