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Finding the Fourth Proportional to 18,278.01, 25,224.35 and 10,321.11

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Solution

The fourth proportional to 18,278.01, 25,224.35 and 10,321.11 is: 14,243.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.01 : 25,224.35 = 10,321.11 : x
  2. Step 2: Convert to fraction form
    18,278.01/25,224.35 = 10,321.11/x
  3. Step 3: Cross multiply
    18,278.01x = 25,224.35 × 10,321.11
  4. Step 4: Simplify right side
    18,278.01x = 260,343,239.42
  5. Step 5: Solve for x
    x = 260,343,239.42/18,278.01
  6. Step 6: Final answer
    x = 14,243.52

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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.