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Finding the Fourth Proportional to 8,586.10, 12,894.99 and 5,144.50

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Solution

The fourth proportional to 8,586.10, 12,894.99 and 5,144.50 is: 7,726.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.10 : 12,894.99 = 5,144.50 : x
  2. Step 2: Convert to fraction form
    8,586.10/12,894.99 = 5,144.50/x
  3. Step 3: Cross multiply
    8,586.10x = 12,894.99 × 5,144.50
  4. Step 4: Simplify right side
    8,586.10x = 66,338,276.06
  5. Step 5: Solve for x
    x = 66,338,276.06/8,586.10
  6. Step 6: Final answer
    x = 7,726.24

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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.