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Finding the Fourth Proportional to 29,970.60, 44,975.96 and 12,440.44

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Solution

The fourth proportional to 29,970.60, 44,975.96 and 12,440.44 is: 18,668.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,970.60 : 44,975.96 = 12,440.44 : x
  2. Step 2: Convert to fraction form
    29,970.60/44,975.96 = 12,440.44/x
  3. Step 3: Cross multiply
    29,970.60x = 44,975.96 × 12,440.44
  4. Step 4: Simplify right side
    29,970.60x = 559,520,731.82
  5. Step 5: Solve for x
    x = 559,520,731.82/29,970.60
  6. Step 6: Final answer
    x = 18,668.99

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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.