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Finding the Fourth Proportional to 17,817.40, 26,790.90 and 14,966.20

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Solution

The fourth proportional to 17,817.40, 26,790.90 and 14,966.20 is: 22,503.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,817.40 : 26,790.90 = 14,966.20 : x
  2. Step 2: Convert to fraction form
    17,817.40/26,790.90 = 14,966.20/x
  3. Step 3: Cross multiply
    17,817.40x = 26,790.90 × 14,966.20
  4. Step 4: Simplify right side
    17,817.40x = 400,957,967.58
  5. Step 5: Solve for x
    x = 400,957,967.58/17,817.40
  6. Step 6: Final answer
    x = 22,503.73

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1.5x scale

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.