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Finding the Fourth Proportional to 19,400.99, 29,094.20 and 6,917.65

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Solution

The fourth proportional to 19,400.99, 29,094.20 and 6,917.65 is: 10,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.99 : 29,094.20 = 6,917.65 : x
  2. Step 2: Convert to fraction form
    19,400.99/29,094.20 = 6,917.65/x
  3. Step 3: Cross multiply
    19,400.99x = 29,094.20 × 6,917.65
  4. Step 4: Simplify right side
    19,400.99x = 201,263,385.31
  5. Step 5: Solve for x
    x = 201,263,385.31/19,400.99
  6. Step 6: Final answer
    x = 10,373.87

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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.