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Finding the Fourth Proportional to 19,361.92, 26,734.50 and 14,878.60

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Solution

The fourth proportional to 19,361.92, 26,734.50 and 14,878.60 is: 20,544.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,361.92 : 26,734.50 = 14,878.60 : x
  2. Step 2: Convert to fraction form
    19,361.92/26,734.50 = 14,878.60/x
  3. Step 3: Cross multiply
    19,361.92x = 26,734.50 × 14,878.60
  4. Step 4: Simplify right side
    19,361.92x = 397,771,931.70
  5. Step 5: Solve for x
    x = 397,771,931.70/19,361.92
  6. Step 6: Final answer
    x = 20,544.03

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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.