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Finding the Fourth Proportional to 8,606.99, 12,909.24 and 2,762.84

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Solution

The fourth proportional to 8,606.99, 12,909.24 and 2,762.84 is: 4,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.99 : 12,909.24 = 2,762.84 : x
  2. Step 2: Convert to fraction form
    8,606.99/12,909.24 = 2,762.84/x
  3. Step 3: Cross multiply
    8,606.99x = 12,909.24 × 2,762.84
  4. Step 4: Simplify right side
    8,606.99x = 35,666,100.10
  5. Step 5: Solve for x
    x = 35,666,100.10/8,606.99
  6. Step 6: Final answer
    x = 4,143.86

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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.