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Finding the Fourth Proportional to 18,297.44, 27,482.90 and 10,916.32

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Solution

The fourth proportional to 18,297.44, 27,482.90 and 10,916.32 is: 16,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.44 : 27,482.90 = 10,916.32 : x
  2. Step 2: Convert to fraction form
    18,297.44/27,482.90 = 10,916.32/x
  3. Step 3: Cross multiply
    18,297.44x = 27,482.90 × 10,916.32
  4. Step 4: Simplify right side
    18,297.44x = 300,012,130.93
  5. Step 5: Solve for x
    x = 300,012,130.93/18,297.44
  6. Step 6: Final answer
    x = 16,396.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.