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Finding the Fourth Proportional to 4,609.76, 6,914.60 and 1,322.87

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Solution

The fourth proportional to 4,609.76, 6,914.60 and 1,322.87 is: 1,984.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.76 : 6,914.60 = 1,322.87 : x
  2. Step 2: Convert to fraction form
    4,609.76/6,914.60 = 1,322.87/x
  3. Step 3: Cross multiply
    4,609.76x = 6,914.60 × 1,322.87
  4. Step 4: Simplify right side
    4,609.76x = 9,147,127.57
  5. Step 5: Solve for x
    x = 9,147,127.57/4,609.76
  6. Step 6: Final answer
    x = 1,984.29

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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.