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Finding the Fourth Proportional to 17,605.60, 26,408.40 and 5,293.60

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Solution

The fourth proportional to 17,605.60, 26,408.40 and 5,293.60 is: 7,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.60 : 26,408.40 = 5,293.60 : x
  2. Step 2: Convert to fraction form
    17,605.60/26,408.40 = 5,293.60/x
  3. Step 3: Cross multiply
    17,605.60x = 26,408.40 × 5,293.60
  4. Step 4: Simplify right side
    17,605.60x = 139,795,506.24
  5. Step 5: Solve for x
    x = 139,795,506.24/17,605.60
  6. Step 6: Final answer
    x = 7,940.40

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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.