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Finding the Fourth Proportional to 7,122.05, 10,685.23 and 5,046.07

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Solution

The fourth proportional to 7,122.05, 10,685.23 and 5,046.07 is: 7,570.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.05 : 10,685.23 = 5,046.07 : x
  2. Step 2: Convert to fraction form
    7,122.05/10,685.23 = 5,046.07/x
  3. Step 3: Cross multiply
    7,122.05x = 10,685.23 × 5,046.07
  4. Step 4: Simplify right side
    7,122.05x = 53,918,365.12
  5. Step 5: Solve for x
    x = 53,918,365.12/7,122.05
  6. Step 6: Final answer
    x = 7,570.63

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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.