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Finding the Fourth Proportional to 84,976.50, 127,464.75 and 40,468.32

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Solution

The fourth proportional to 84,976.50, 127,464.75 and 40,468.32 is: 60,702.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,976.50 : 127,464.75 = 40,468.32 : x
  2. Step 2: Convert to fraction form
    84,976.50/127,464.75 = 40,468.32/x
  3. Step 3: Cross multiply
    84,976.50x = 127,464.75 × 40,468.32
  4. Step 4: Simplify right side
    84,976.50x = 5,158,284,291.72
  5. Step 5: Solve for x
    x = 5,158,284,291.72/84,976.50
  6. Step 6: Final answer
    x = 60,702.48

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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.