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Finding the Fourth Proportional to 23,887.11, 32,978.97 and 15,392.24

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Solution

The fourth proportional to 23,887.11, 32,978.97 and 15,392.24 is: 21,250.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,887.11 : 32,978.97 = 15,392.24 : x
  2. Step 2: Convert to fraction form
    23,887.11/32,978.97 = 15,392.24/x
  3. Step 3: Cross multiply
    23,887.11x = 32,978.97 × 15,392.24
  4. Step 4: Simplify right side
    23,887.11x = 507,620,221.19
  5. Step 5: Solve for x
    x = 507,620,221.19/23,887.11
  6. Step 6: Final answer
    x = 21,250.80

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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.