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Finding the Fourth Proportional to 15,903.99, 21,944.03 and 9,616.23

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Solution

The fourth proportional to 15,903.99, 21,944.03 and 9,616.23 is: 13,268.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,903.99 : 21,944.03 = 9,616.23 : x
  2. Step 2: Convert to fraction form
    15,903.99/21,944.03 = 9,616.23/x
  3. Step 3: Cross multiply
    15,903.99x = 21,944.03 × 9,616.23
  4. Step 4: Simplify right side
    15,903.99x = 211,018,791.53
  5. Step 5: Solve for x
    x = 211,018,791.53/15,903.99
  6. Step 6: Final answer
    x = 13,268.29

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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.