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Finding the Fourth Proportional to 19,898.64, 29,847.60 and 16,798.56

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Solution

The fourth proportional to 19,898.64, 29,847.60 and 16,798.56 is: 25,197.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898.64 : 29,847.60 = 16,798.56 : x
  2. Step 2: Convert to fraction form
    19,898.64/29,847.60 = 16,798.56/x
  3. Step 3: Cross multiply
    19,898.64x = 29,847.60 × 16,798.56
  4. Step 4: Simplify right side
    19,898.64x = 501,396,699.46
  5. Step 5: Solve for x
    x = 501,396,699.46/19,898.64
  6. Step 6: Final answer
    x = 25,197.54

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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.