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Finding the Fourth Proportional to 26,995.94, 40,506.21 and 13,857.54

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Solution

The fourth proportional to 26,995.94, 40,506.21 and 13,857.54 is: 20,792.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,995.94 : 40,506.21 = 13,857.54 : x
  2. Step 2: Convert to fraction form
    26,995.94/40,506.21 = 13,857.54/x
  3. Step 3: Cross multiply
    26,995.94x = 40,506.21 × 13,857.54
  4. Step 4: Simplify right side
    26,995.94x = 561,316,425.32
  5. Step 5: Solve for x
    x = 561,316,425.32/26,995.94
  6. Step 6: Final answer
    x = 20,792.63

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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.