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Finding the Fourth Proportional to 28,203.49, 38,924.94 and 16,264.48

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Solution

The fourth proportional to 28,203.49, 38,924.94 and 16,264.48 is: 22,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.49 : 38,924.94 = 16,264.48 : x
  2. Step 2: Convert to fraction form
    28,203.49/38,924.94 = 16,264.48/x
  3. Step 3: Cross multiply
    28,203.49x = 38,924.94 × 16,264.48
  4. Step 4: Simplify right side
    28,203.49x = 633,093,908.13
  5. Step 5: Solve for x
    x = 633,093,908.13/28,203.49
  6. Step 6: Final answer
    x = 22,447.36

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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.