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Finding the Fourth Proportional to 8,593.95, 12,890.75 and 4,647.09

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Solution

The fourth proportional to 8,593.95, 12,890.75 and 4,647.09 is: 6,970.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,593.95 : 12,890.75 = 4,647.09 : x
  2. Step 2: Convert to fraction form
    8,593.95/12,890.75 = 4,647.09/x
  3. Step 3: Cross multiply
    8,593.95x = 12,890.75 × 4,647.09
  4. Step 4: Simplify right side
    8,593.95x = 59,904,452.18
  5. Step 5: Solve for x
    x = 59,904,452.18/8,593.95
  6. Step 6: Final answer
    x = 6,970.54

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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.