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Finding the Fourth Proportional to 12,365.99, 18,552.05 and 3,600.98

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Solution

The fourth proportional to 12,365.99, 18,552.05 and 3,600.98 is: 5,402.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.99 : 18,552.05 = 3,600.98 : x
  2. Step 2: Convert to fraction form
    12,365.99/18,552.05 = 3,600.98/x
  3. Step 3: Cross multiply
    12,365.99x = 18,552.05 × 3,600.98
  4. Step 4: Simplify right side
    12,365.99x = 66,805,561.01
  5. Step 5: Solve for x
    x = 66,805,561.01/12,365.99
  6. Step 6: Final answer
    x = 5,402.36

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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.