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Finding the Fourth Proportional to 19,293.16, 28,917.40 and 8,883.04

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Solution

The fourth proportional to 19,293.16, 28,917.40 and 8,883.04 is: 13,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,293.16 : 28,917.40 = 8,883.04 : x
  2. Step 2: Convert to fraction form
    19,293.16/28,917.40 = 8,883.04/x
  3. Step 3: Cross multiply
    19,293.16x = 28,917.40 × 8,883.04
  4. Step 4: Simplify right side
    19,293.16x = 256,874,420.90
  5. Step 5: Solve for x
    x = 256,874,420.90/19,293.16
  6. Step 6: Final answer
    x = 13,314.27

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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.