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Finding the Fourth Proportional to 8,572.93, 12,860.12 and 3,307.73

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Solution

The fourth proportional to 8,572.93, 12,860.12 and 3,307.73 is: 4,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.93 : 12,860.12 = 3,307.73 : x
  2. Step 2: Convert to fraction form
    8,572.93/12,860.12 = 3,307.73/x
  3. Step 3: Cross multiply
    8,572.93x = 12,860.12 × 3,307.73
  4. Step 4: Simplify right side
    8,572.93x = 42,537,766.26
  5. Step 5: Solve for x
    x = 42,537,766.26/8,572.93
  6. Step 6: Final answer
    x = 4,961.87

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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.