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Finding the Fourth Proportional to 21,475.01, 29,635.49 and 12,043.49

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Solution

The fourth proportional to 21,475.01, 29,635.49 and 12,043.49 is: 16,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.01 : 29,635.49 = 12,043.49 : x
  2. Step 2: Convert to fraction form
    21,475.01/29,635.49 = 12,043.49/x
  3. Step 3: Cross multiply
    21,475.01x = 29,635.49 × 12,043.49
  4. Step 4: Simplify right side
    21,475.01x = 356,914,667.24
  5. Step 5: Solve for x
    x = 356,914,667.24/21,475.01
  6. Step 6: Final answer
    x = 16,620.00

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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.