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Finding the Fourth Proportional to 16,386.68, 22,613.94 and 8,934.68

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Solution

The fourth proportional to 16,386.68, 22,613.94 and 8,934.68 is: 12,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,386.68 : 22,613.94 = 8,934.68 : x
  2. Step 2: Convert to fraction form
    16,386.68/22,613.94 = 8,934.68/x
  3. Step 3: Cross multiply
    16,386.68x = 22,613.94 × 8,934.68
  4. Step 4: Simplify right side
    16,386.68x = 202,048,317.44
  5. Step 5: Solve for x
    x = 202,048,317.44/16,386.68
  6. Step 6: Final answer
    x = 12,330.03

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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.