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Finding the Fourth Proportional to 29,625.64, 40,879.42 and 19,029.64

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Solution

The fourth proportional to 29,625.64, 40,879.42 and 19,029.64 is: 26,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,625.64 : 40,879.42 = 19,029.64 : x
  2. Step 2: Convert to fraction form
    29,625.64/40,879.42 = 19,029.64/x
  3. Step 3: Cross multiply
    29,625.64x = 40,879.42 × 19,029.64
  4. Step 4: Simplify right side
    29,625.64x = 777,920,646.01
  5. Step 5: Solve for x
    x = 777,920,646.01/29,625.64
  6. Step 6: Final answer
    x = 26,258.36

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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.