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Finding the Fourth Proportional to 8,525.68, 12,782.73 and 2,975.99

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Solution

The fourth proportional to 8,525.68, 12,782.73 and 2,975.99 is: 4,461.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,525.68 : 12,782.73 = 2,975.99 : x
  2. Step 2: Convert to fraction form
    8,525.68/12,782.73 = 2,975.99/x
  3. Step 3: Cross multiply
    8,525.68x = 12,782.73 × 2,975.99
  4. Step 4: Simplify right side
    8,525.68x = 38,041,197.86
  5. Step 5: Solve for x
    x = 38,041,197.86/8,525.68
  6. Step 6: Final answer
    x = 4,461.96

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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.