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Finding the Fourth Proportional to 7,199.94, 10,735.59 and 7,190.22

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Solution

The fourth proportional to 7,199.94, 10,735.59 and 7,190.22 is: 10,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.94 : 10,735.59 = 7,190.22 : x
  2. Step 2: Convert to fraction form
    7,199.94/10,735.59 = 7,190.22/x
  3. Step 3: Cross multiply
    7,199.94x = 10,735.59 × 7,190.22
  4. Step 4: Simplify right side
    7,199.94x = 77,191,253.93
  5. Step 5: Solve for x
    x = 77,191,253.93/7,199.94
  6. Step 6: Final answer
    x = 10,721.10

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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.