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Finding the Fourth Proportional to 19,333.92, 29,007.60 and 9,981.60

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Solution

The fourth proportional to 19,333.92, 29,007.60 and 9,981.60 is: 14,975.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,333.92 : 29,007.60 = 9,981.60 : x
  2. Step 2: Convert to fraction form
    19,333.92/29,007.60 = 9,981.60/x
  3. Step 3: Cross multiply
    19,333.92x = 29,007.60 × 9,981.60
  4. Step 4: Simplify right side
    19,333.92x = 289,542,260.16
  5. Step 5: Solve for x
    x = 289,542,260.16/19,333.92
  6. Step 6: Final answer
    x = 14,975.87

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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.