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Finding the Fourth Proportional to 77,058.58, 115,621.26 and 27,174.32

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Solution

The fourth proportional to 77,058.58, 115,621.26 and 27,174.32 is: 40,773.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,058.58 : 115,621.26 = 27,174.32 : x
  2. Step 2: Convert to fraction form
    77,058.58/115,621.26 = 27,174.32/x
  3. Step 3: Cross multiply
    77,058.58x = 115,621.26 × 27,174.32
  4. Step 4: Simplify right side
    77,058.58x = 3,141,929,118.04
  5. Step 5: Solve for x
    x = 3,141,929,118.04/77,058.58
  6. Step 6: Final answer
    x = 40,773.25

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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.