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Finding the Fourth Proportional to 14,872.60, 20,525.34 and 11,329.72

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Solution

The fourth proportional to 14,872.60, 20,525.34 and 11,329.72 is: 15,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.60 : 20,525.34 = 11,329.72 : x
  2. Step 2: Convert to fraction form
    14,872.60/20,525.34 = 11,329.72/x
  3. Step 3: Cross multiply
    14,872.60x = 20,525.34 × 11,329.72
  4. Step 4: Simplify right side
    14,872.60x = 232,546,355.10
  5. Step 5: Solve for x
    x = 232,546,355.10/14,872.60
  6. Step 6: Final answer
    x = 15,635.89

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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.