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Finding the Fourth Proportional to 60,932.58, 91,389.61 and 20,957.64

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Solution

The fourth proportional to 60,932.58, 91,389.61 and 20,957.64 is: 31,433.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,932.58 : 91,389.61 = 20,957.64 : x
  2. Step 2: Convert to fraction form
    60,932.58/91,389.61 = 20,957.64/x
  3. Step 3: Cross multiply
    60,932.58x = 91,389.61 × 20,957.64
  4. Step 4: Simplify right side
    60,932.58x = 1,915,310,546.12
  5. Step 5: Solve for x
    x = 1,915,310,546.12/60,932.58
  6. Step 6: Final answer
    x = 31,433.28

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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.