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Finding the Fourth Proportional to 23,889.60, 32,983.20 and 19,195.20

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Solution

The fourth proportional to 23,889.60, 32,983.20 and 19,195.20 is: 26,501.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,889.60 : 32,983.20 = 19,195.20 : x
  2. Step 2: Convert to fraction form
    23,889.60/32,983.20 = 19,195.20/x
  3. Step 3: Cross multiply
    23,889.60x = 32,983.20 × 19,195.20
  4. Step 4: Simplify right side
    23,889.60x = 633,119,120.64
  5. Step 5: Solve for x
    x = 633,119,120.64/23,889.60
  6. Step 6: Final answer
    x = 26,501.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.