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Finding the Fourth Proportional to 54,679.54, 74,965.63 and 53,683.09

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Solution

The fourth proportional to 54,679.54, 74,965.63 and 53,683.09 is: 73,599.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,679.54 : 74,965.63 = 53,683.09 : x
  2. Step 2: Convert to fraction form
    54,679.54/74,965.63 = 53,683.09/x
  3. Step 3: Cross multiply
    54,679.54x = 74,965.63 × 53,683.09
  4. Step 4: Simplify right side
    54,679.54x = 4,024,386,662.20
  5. Step 5: Solve for x
    x = 4,024,386,662.20/54,679.54
  6. Step 6: Final answer
    x = 73,599.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.