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Finding the Fourth Proportional to 18,899.15, 26,080.92 and 10,401.01

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Solution

The fourth proportional to 18,899.15, 26,080.92 and 10,401.01 is: 14,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.15 : 26,080.92 = 10,401.01 : x
  2. Step 2: Convert to fraction form
    18,899.15/26,080.92 = 10,401.01/x
  3. Step 3: Cross multiply
    18,899.15x = 26,080.92 × 10,401.01
  4. Step 4: Simplify right side
    18,899.15x = 271,267,844.53
  5. Step 5: Solve for x
    x = 271,267,844.53/18,899.15
  6. Step 6: Final answer
    x = 14,353.45

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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.