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Finding the Fourth Proportional to 17,700.15, 26,566.64 and 8,941.21

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Solution

The fourth proportional to 17,700.15, 26,566.64 and 8,941.21 is: 13,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,700.15 : 26,566.64 = 8,941.21 : x
  2. Step 2: Convert to fraction form
    17,700.15/26,566.64 = 8,941.21/x
  3. Step 3: Cross multiply
    17,700.15x = 26,566.64 × 8,941.21
  4. Step 4: Simplify right side
    17,700.15x = 237,537,907.23
  5. Step 5: Solve for x
    x = 237,537,907.23/17,700.15
  6. Step 6: Final answer
    x = 13,420.11

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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.