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Finding the Fourth Proportional to 48,644.64, 67,129.68 and 26,288.64

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Solution

The fourth proportional to 48,644.64, 67,129.68 and 26,288.64 is: 36,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,644.64 : 67,129.68 = 26,288.64 : x
  2. Step 2: Convert to fraction form
    48,644.64/67,129.68 = 26,288.64/x
  3. Step 3: Cross multiply
    48,644.64x = 67,129.68 × 26,288.64
  4. Step 4: Simplify right side
    48,644.64x = 1,764,747,990.84
  5. Step 5: Solve for x
    x = 1,764,747,990.84/48,644.64
  6. Step 6: Final answer
    x = 36,278.36

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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.