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Finding the Fourth Proportional to 35,490.60, 48,976.92 and 19,576.80

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Solution

The fourth proportional to 35,490.60, 48,976.92 and 19,576.80 is: 27,015.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,490.60 : 48,976.92 = 19,576.80 : x
  2. Step 2: Convert to fraction form
    35,490.60/48,976.92 = 19,576.80/x
  3. Step 3: Cross multiply
    35,490.60x = 48,976.92 × 19,576.80
  4. Step 4: Simplify right side
    35,490.60x = 958,811,367.46
  5. Step 5: Solve for x
    x = 958,811,367.46/35,490.60
  6. Step 6: Final answer
    x = 27,015.92

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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.