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Finding the Fourth Proportional to 9,940.60, 14,910.90 and 9,033.40

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Solution

The fourth proportional to 9,940.60, 14,910.90 and 9,033.40 is: 13,550.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.60 : 14,910.90 = 9,033.40 : x
  2. Step 2: Convert to fraction form
    9,940.60/14,910.90 = 9,033.40/x
  3. Step 3: Cross multiply
    9,940.60x = 14,910.90 × 9,033.40
  4. Step 4: Simplify right side
    9,940.60x = 134,696,124.06
  5. Step 5: Solve for x
    x = 134,696,124.06/9,940.60
  6. Step 6: Final answer
    x = 13,550.10

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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.