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Finding the Fourth Proportional to 18,041.85, 24,881.64 and 11,328.12

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Solution

The fourth proportional to 18,041.85, 24,881.64 and 11,328.12 is: 15,622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,041.85 : 24,881.64 = 11,328.12 : x
  2. Step 2: Convert to fraction form
    18,041.85/24,881.64 = 11,328.12/x
  3. Step 3: Cross multiply
    18,041.85x = 24,881.64 × 11,328.12
  4. Step 4: Simplify right side
    18,041.85x = 281,862,203.72
  5. Step 5: Solve for x
    x = 281,862,203.72/18,041.85
  6. Step 6: Final answer
    x = 15,622.69

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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.