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Finding the Fourth Proportional to 54,339.93, 74,992.74 and 30,468.15

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Solution

The fourth proportional to 54,339.93, 74,992.74 and 30,468.15 is: 42,048.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,339.93 : 74,992.74 = 30,468.15 : x
  2. Step 2: Convert to fraction form
    54,339.93/74,992.74 = 30,468.15/x
  3. Step 3: Cross multiply
    54,339.93x = 74,992.74 × 30,468.15
  4. Step 4: Simplify right side
    54,339.93x = 2,284,890,051.23
  5. Step 5: Solve for x
    x = 2,284,890,051.23/54,339.93
  6. Step 6: Final answer
    x = 42,048.09

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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.