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Finding the Fourth Proportional to 18,655.03, 25,746.40 and 10,695.70

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Solution

The fourth proportional to 18,655.03, 25,746.40 and 10,695.70 is: 14,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.03 : 25,746.40 = 10,695.70 : x
  2. Step 2: Convert to fraction form
    18,655.03/25,746.40 = 10,695.70/x
  3. Step 3: Cross multiply
    18,655.03x = 25,746.40 × 10,695.70
  4. Step 4: Simplify right side
    18,655.03x = 275,375,770.48
  5. Step 5: Solve for x
    x = 275,375,770.48/18,655.03
  6. Step 6: Final answer
    x = 14,761.48

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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.