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Finding the Fourth Proportional to 21,776.46, 30,068.46 and 16,732.68

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Solution

The fourth proportional to 21,776.46, 30,068.46 and 16,732.68 is: 23,104.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,776.46 : 30,068.46 = 16,732.68 : x
  2. Step 2: Convert to fraction form
    21,776.46/30,068.46 = 16,732.68/x
  3. Step 3: Cross multiply
    21,776.46x = 30,068.46 × 16,732.68
  4. Step 4: Simplify right side
    21,776.46x = 503,125,919.27
  5. Step 5: Solve for x
    x = 503,125,919.27/21,776.46
  6. Step 6: Final answer
    x = 23,104.12

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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.