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Finding the Fourth Proportional to 28,793.85, 43,196.85 and 9,074.40

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Solution

The fourth proportional to 28,793.85, 43,196.85 and 9,074.40 is: 13,613.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.85 : 43,196.85 = 9,074.40 : x
  2. Step 2: Convert to fraction form
    28,793.85/43,196.85 = 9,074.40/x
  3. Step 3: Cross multiply
    28,793.85x = 43,196.85 × 9,074.40
  4. Step 4: Simplify right side
    28,793.85x = 391,985,495.64
  5. Step 5: Solve for x
    x = 391,985,495.64/28,793.85
  6. Step 6: Final answer
    x = 13,613.51

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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.