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Finding the Fourth Proportional to 18,751.16, 25,910.82 and 17,840.20

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Solution

The fourth proportional to 18,751.16, 25,910.82 and 17,840.20 is: 24,652.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751.16 : 25,910.82 = 17,840.20 : x
  2. Step 2: Convert to fraction form
    18,751.16/25,910.82 = 17,840.20/x
  3. Step 3: Cross multiply
    18,751.16x = 25,910.82 × 17,840.20
  4. Step 4: Simplify right side
    18,751.16x = 462,254,210.96
  5. Step 5: Solve for x
    x = 462,254,210.96/18,751.16
  6. Step 6: Final answer
    x = 24,652.03

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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.