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Finding the Fourth Proportional to 18,407.26, 25,401.90 and 10,023.76

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Solution

The fourth proportional to 18,407.26, 25,401.90 and 10,023.76 is: 13,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.26 : 25,401.90 = 10,023.76 : x
  2. Step 2: Convert to fraction form
    18,407.26/25,401.90 = 10,023.76/x
  3. Step 3: Cross multiply
    18,407.26x = 25,401.90 × 10,023.76
  4. Step 4: Simplify right side
    18,407.26x = 254,622,549.14
  5. Step 5: Solve for x
    x = 254,622,549.14/18,407.26
  6. Step 6: Final answer
    x = 13,832.72

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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.