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Finding the Fourth Proportional to 15,365.24, 21,203.22 and 8,651.24

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Solution

The fourth proportional to 15,365.24, 21,203.22 and 8,651.24 is: 11,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.24 : 21,203.22 = 8,651.24 : x
  2. Step 2: Convert to fraction form
    15,365.24/21,203.22 = 8,651.24/x
  3. Step 3: Cross multiply
    15,365.24x = 21,203.22 × 8,651.24
  4. Step 4: Simplify right side
    15,365.24x = 183,434,144.99
  5. Step 5: Solve for x
    x = 183,434,144.99/15,365.24
  6. Step 6: Final answer
    x = 11,938.25

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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.