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Finding the Fourth Proportional to 65,732.54, 98,604.27 and 21,358.31

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Solution

The fourth proportional to 65,732.54, 98,604.27 and 21,358.31 is: 32,039.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,732.54 : 98,604.27 = 21,358.31 : x
  2. Step 2: Convert to fraction form
    65,732.54/98,604.27 = 21,358.31/x
  3. Step 3: Cross multiply
    65,732.54x = 98,604.27 × 21,358.31
  4. Step 4: Simplify right side
    65,732.54x = 2,106,020,072.96
  5. Step 5: Solve for x
    x = 2,106,020,072.96/65,732.54
  6. Step 6: Final answer
    x = 32,039.23

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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.