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Finding the Fourth Proportional to 26,751.72, 36,899.04 and 18,353.64

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Solution

The fourth proportional to 26,751.72, 36,899.04 and 18,353.64 is: 25,315.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,751.72 : 36,899.04 = 18,353.64 : x
  2. Step 2: Convert to fraction form
    26,751.72/36,899.04 = 18,353.64/x
  3. Step 3: Cross multiply
    26,751.72x = 36,899.04 × 18,353.64
  4. Step 4: Simplify right side
    26,751.72x = 677,231,696.51
  5. Step 5: Solve for x
    x = 677,231,696.51/26,751.72
  6. Step 6: Final answer
    x = 25,315.45

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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.