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Finding the Fourth Proportional to 9,609.90, 14,409.72 and 2,945.22

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Solution

The fourth proportional to 9,609.90, 14,409.72 and 2,945.22 is: 4,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,609.90 : 14,409.72 = 2,945.22 : x
  2. Step 2: Convert to fraction form
    9,609.90/14,409.72 = 2,945.22/x
  3. Step 3: Cross multiply
    9,609.90x = 14,409.72 × 2,945.22
  4. Step 4: Simplify right side
    9,609.90x = 42,439,795.54
  5. Step 5: Solve for x
    x = 42,439,795.54/9,609.90
  6. Step 6: Final answer
    x = 4,416.26

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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.