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Finding the Fourth Proportional to 17,485.61, 26,242.24 and 7,631.81

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Solution

The fourth proportional to 17,485.61, 26,242.24 and 7,631.81 is: 11,453.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,485.61 : 26,242.24 = 7,631.81 : x
  2. Step 2: Convert to fraction form
    17,485.61/26,242.24 = 7,631.81/x
  3. Step 3: Cross multiply
    17,485.61x = 26,242.24 × 7,631.81
  4. Step 4: Simplify right side
    17,485.61x = 200,275,751.50
  5. Step 5: Solve for x
    x = 200,275,751.50/17,485.61
  6. Step 6: Final answer
    x = 11,453.75

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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.