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Finding the Fourth Proportional to 9,940.92, 14,914.62 and 4,108.92

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Solution

The fourth proportional to 9,940.92, 14,914.62 and 4,108.92 is: 6,164.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.92 : 14,914.62 = 4,108.92 : x
  2. Step 2: Convert to fraction form
    9,940.92/14,914.62 = 4,108.92/x
  3. Step 3: Cross multiply
    9,940.92x = 14,914.62 × 4,108.92
  4. Step 4: Simplify right side
    9,940.92x = 61,282,980.41
  5. Step 5: Solve for x
    x = 61,282,980.41/9,940.92
  6. Step 6: Final answer
    x = 6,164.72

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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.