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Finding the Fourth Proportional to 17,385.27, 26,068.64 and 8,020.45

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Solution

The fourth proportional to 17,385.27, 26,068.64 and 8,020.45 is: 12,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,385.27 : 26,068.64 = 8,020.45 : x
  2. Step 2: Convert to fraction form
    17,385.27/26,068.64 = 8,020.45/x
  3. Step 3: Cross multiply
    17,385.27x = 26,068.64 × 8,020.45
  4. Step 4: Simplify right side
    17,385.27x = 209,082,216.17
  5. Step 5: Solve for x
    x = 209,082,216.17/17,385.27
  6. Step 6: Final answer
    x = 12,026.40

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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.