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Finding the Fourth Proportional to 17,605.45, 26,409.14 and 4,457.94

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Solution

The fourth proportional to 17,605.45, 26,409.14 and 4,457.94 is: 6,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.45 : 26,409.14 = 4,457.94 : x
  2. Step 2: Convert to fraction form
    17,605.45/26,409.14 = 4,457.94/x
  3. Step 3: Cross multiply
    17,605.45x = 26,409.14 × 4,457.94
  4. Step 4: Simplify right side
    17,605.45x = 117,730,256.96
  5. Step 5: Solve for x
    x = 117,730,256.96/17,605.45
  6. Step 6: Final answer
    x = 6,687.15

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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.