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Finding the Fourth Proportional to 7,365.12, 10,163.76 and 4,053.12

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Solution

The fourth proportional to 7,365.12, 10,163.76 and 4,053.12 is: 5,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,365.12 : 10,163.76 = 4,053.12 : x
  2. Step 2: Convert to fraction form
    7,365.12/10,163.76 = 4,053.12/x
  3. Step 3: Cross multiply
    7,365.12x = 10,163.76 × 4,053.12
  4. Step 4: Simplify right side
    7,365.12x = 41,194,938.93
  5. Step 5: Solve for x
    x = 41,194,938.93/7,365.12
  6. Step 6: Final answer
    x = 5,593.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.