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Finding the Fourth Proportional to 14,959.89, 22,405.21 and 7,449.77

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Solution

The fourth proportional to 14,959.89, 22,405.21 and 7,449.77 is: 11,157.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,959.89 : 22,405.21 = 7,449.77 : x
  2. Step 2: Convert to fraction form
    14,959.89/22,405.21 = 7,449.77/x
  3. Step 3: Cross multiply
    14,959.89x = 22,405.21 × 7,449.77
  4. Step 4: Simplify right side
    14,959.89x = 166,913,698.69
  5. Step 5: Solve for x
    x = 166,913,698.69/14,959.89
  6. Step 6: Final answer
    x = 11,157.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.