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Finding the Fourth Proportional to 28,813.35, 43,220.03 and 9,093.42

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Solution

The fourth proportional to 28,813.35, 43,220.03 and 9,093.42 is: 13,640.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813.35 : 43,220.03 = 9,093.42 : x
  2. Step 2: Convert to fraction form
    28,813.35/43,220.03 = 9,093.42/x
  3. Step 3: Cross multiply
    28,813.35x = 43,220.03 × 9,093.42
  4. Step 4: Simplify right side
    28,813.35x = 393,017,885.20
  5. Step 5: Solve for x
    x = 393,017,885.20/28,813.35
  6. Step 6: Final answer
    x = 13,640.13

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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.