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Finding the Fourth Proportional to 15,649.11, 21,597.84 and 8,933.22

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Solution

The fourth proportional to 15,649.11, 21,597.84 and 8,933.22 is: 12,329.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,649.11 : 21,597.84 = 8,933.22 : x
  2. Step 2: Convert to fraction form
    15,649.11/21,597.84 = 8,933.22/x
  3. Step 3: Cross multiply
    15,649.11x = 21,597.84 × 8,933.22
  4. Step 4: Simplify right side
    15,649.11x = 192,938,256.24
  5. Step 5: Solve for x
    x = 192,938,256.24/15,649.11
  6. Step 6: Final answer
    x = 12,329.02

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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.