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Finding the Fourth Proportional to 14,912.10, 20,575.22 and 12,531.11

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Solution

The fourth proportional to 14,912.10, 20,575.22 and 12,531.11 is: 17,290.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,912.10 : 20,575.22 = 12,531.11 : x
  2. Step 2: Convert to fraction form
    14,912.10/20,575.22 = 12,531.11/x
  3. Step 3: Cross multiply
    14,912.10x = 20,575.22 × 12,531.11
  4. Step 4: Simplify right side
    14,912.10x = 257,830,179.56
  5. Step 5: Solve for x
    x = 257,830,179.56/14,912.10
  6. Step 6: Final answer
    x = 17,290.00

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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.