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Finding the Fourth Proportional to 14,940.15, 22,405.21 and 7,539.89

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Solution

The fourth proportional to 14,940.15, 22,405.21 and 7,539.89 is: 11,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.15 : 22,405.21 = 7,539.89 : x
  2. Step 2: Convert to fraction form
    14,940.15/22,405.21 = 7,539.89/x
  3. Step 3: Cross multiply
    14,940.15x = 22,405.21 × 7,539.89
  4. Step 4: Simplify right side
    14,940.15x = 168,932,687.95
  5. Step 5: Solve for x
    x = 168,932,687.95/14,940.15
  6. Step 6: Final answer
    x = 11,307.30

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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.