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Finding the Fourth Proportional to 7,410.42, 11,052.32 and 7,296.21

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Solution

The fourth proportional to 7,410.42, 11,052.32 and 7,296.21 is: 10,881.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,410.42 : 11,052.32 = 7,296.21 : x
  2. Step 2: Convert to fraction form
    7,410.42/11,052.32 = 7,296.21/x
  3. Step 3: Cross multiply
    7,410.42x = 11,052.32 × 7,296.21
  4. Step 4: Simplify right side
    7,410.42x = 80,640,011.23
  5. Step 5: Solve for x
    x = 80,640,011.23/7,410.42
  6. Step 6: Final answer
    x = 10,881.98

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.