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Finding the Fourth Proportional to 90,628.98, 135,996.13 and 37,326.32

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Solution

The fourth proportional to 90,628.98, 135,996.13 and 37,326.32 is: 56,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,628.98 : 135,996.13 = 37,326.32 : x
  2. Step 2: Convert to fraction form
    90,628.98/135,996.13 = 37,326.32/x
  3. Step 3: Cross multiply
    90,628.98x = 135,996.13 × 37,326.32
  4. Step 4: Simplify right side
    90,628.98x = 5,076,234,540.52
  5. Step 5: Solve for x
    x = 5,076,234,540.52/90,628.98
  6. Step 6: Final answer
    x = 56,011.17

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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.