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Finding the Fourth Proportional to 18,835.01, 25,992.80 and 10,657.96

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Solution

The fourth proportional to 18,835.01, 25,992.80 and 10,657.96 is: 14,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.01 : 25,992.80 = 10,657.96 : x
  2. Step 2: Convert to fraction form
    18,835.01/25,992.80 = 10,657.96/x
  3. Step 3: Cross multiply
    18,835.01x = 25,992.80 × 10,657.96
  4. Step 4: Simplify right side
    18,835.01x = 277,030,241.86
  5. Step 5: Solve for x
    x = 277,030,241.86/18,835.01
  6. Step 6: Final answer
    x = 14,708.26

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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.