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Finding the Fourth Proportional to 12,271.68, 16,934.80 and 6,682.68

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Solution

The fourth proportional to 12,271.68, 16,934.80 and 6,682.68 is: 9,222.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.68 : 16,934.80 = 6,682.68 : x
  2. Step 2: Convert to fraction form
    12,271.68/16,934.80 = 6,682.68/x
  3. Step 3: Cross multiply
    12,271.68x = 16,934.80 × 6,682.68
  4. Step 4: Simplify right side
    12,271.68x = 113,169,849.26
  5. Step 5: Solve for x
    x = 113,169,849.26/12,271.68
  6. Step 6: Final answer
    x = 9,222.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.