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Finding the Fourth Proportional to 16,386.58, 22,613.43 and 8,934.58

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Solution

The fourth proportional to 16,386.58, 22,613.43 and 8,934.58 is: 12,329.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,386.58 : 22,613.43 = 8,934.58 : x
  2. Step 2: Convert to fraction form
    16,386.58/22,613.43 = 8,934.58/x
  3. Step 3: Cross multiply
    16,386.58x = 22,613.43 × 8,934.58
  4. Step 4: Simplify right side
    16,386.58x = 202,041,499.41
  5. Step 5: Solve for x
    x = 202,041,499.41/16,386.58
  6. Step 6: Final answer
    x = 12,329.69

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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.