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Finding the Fourth Proportional to 18,026.87, 24,841.62 and 13,782.74

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Solution

The fourth proportional to 18,026.87, 24,841.62 and 13,782.74 is: 18,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,026.87 : 24,841.62 = 13,782.74 : x
  2. Step 2: Convert to fraction form
    18,026.87/24,841.62 = 13,782.74/x
  3. Step 3: Cross multiply
    18,026.87x = 24,841.62 × 13,782.74
  4. Step 4: Simplify right side
    18,026.87x = 342,385,465.43
  5. Step 5: Solve for x
    x = 342,385,465.43/18,026.87
  6. Step 6: Final answer
    x = 18,993.07

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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.