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Finding the Fourth Proportional to 40,423.51, 55,786.16 and 22,518.51

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Solution

The fourth proportional to 40,423.51, 55,786.16 and 22,518.51 is: 31,076.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,423.51 : 55,786.16 = 22,518.51 : x
  2. Step 2: Convert to fraction form
    40,423.51/55,786.16 = 22,518.51/x
  3. Step 3: Cross multiply
    40,423.51x = 55,786.16 × 22,518.51
  4. Step 4: Simplify right side
    40,423.51x = 1,256,221,201.82
  5. Step 5: Solve for x
    x = 1,256,221,201.82/40,423.51
  6. Step 6: Final answer
    x = 31,076.50

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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.