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Finding the Fourth Proportional to 40,879.51, 56,415.15 and 22,974.15

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Solution

The fourth proportional to 40,879.51, 56,415.15 and 22,974.15 is: 31,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,879.51 : 56,415.15 = 22,974.15 : x
  2. Step 2: Convert to fraction form
    40,879.51/56,415.15 = 22,974.15/x
  3. Step 3: Cross multiply
    40,879.51x = 56,415.15 × 22,974.15
  4. Step 4: Simplify right side
    40,879.51x = 1,296,090,118.37
  5. Step 5: Solve for x
    x = 1,296,090,118.37/40,879.51
  6. Step 6: Final answer
    x = 31,705.13

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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.