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Finding the Fourth Proportional to 18,701.01, 25,812.65 and 11,051.37

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Solution

The fourth proportional to 18,701.01, 25,812.65 and 11,051.37 is: 15,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.01 : 25,812.65 = 11,051.37 : x
  2. Step 2: Convert to fraction form
    18,701.01/25,812.65 = 11,051.37/x
  3. Step 3: Cross multiply
    18,701.01x = 25,812.65 × 11,051.37
  4. Step 4: Simplify right side
    18,701.01x = 285,265,173.46
  5. Step 5: Solve for x
    x = 285,265,173.46/18,701.01
  6. Step 6: Final answer
    x = 15,254.00

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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.