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Finding the Fourth Proportional to 18,695.55, 25,800.44 and 10,739.37

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Solution

The fourth proportional to 18,695.55, 25,800.44 and 10,739.37 is: 14,820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695.55 : 25,800.44 = 10,739.37 : x
  2. Step 2: Convert to fraction form
    18,695.55/25,800.44 = 10,739.37/x
  3. Step 3: Cross multiply
    18,695.55x = 25,800.44 × 10,739.37
  4. Step 4: Simplify right side
    18,695.55x = 277,080,417.63
  5. Step 5: Solve for x
    x = 277,080,417.63/18,695.55
  6. Step 6: Final answer
    x = 14,820.66

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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.