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Finding the Fourth Proportional to 25,305.92, 37,981.92 and 13,469.64

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Solution

The fourth proportional to 25,305.92, 37,981.92 and 13,469.64 is: 20,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.92 : 37,981.92 = 13,469.64 : x
  2. Step 2: Convert to fraction form
    25,305.92/37,981.92 = 13,469.64/x
  3. Step 3: Cross multiply
    25,305.92x = 37,981.92 × 13,469.64
  4. Step 4: Simplify right side
    25,305.92x = 511,602,599.00
  5. Step 5: Solve for x
    x = 511,602,599.00/25,305.92
  6. Step 6: Final answer
    x = 20,216.72

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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.