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Finding the Fourth Proportional to 33,010.76, 45,509.28 and 31,976.84

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Solution

The fourth proportional to 33,010.76, 45,509.28 and 31,976.84 is: 44,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,010.76 : 45,509.28 = 31,976.84 : x
  2. Step 2: Convert to fraction form
    33,010.76/45,509.28 = 31,976.84/x
  3. Step 3: Cross multiply
    33,010.76x = 45,509.28 × 31,976.84
  4. Step 4: Simplify right side
    33,010.76x = 1,455,242,965.08
  5. Step 5: Solve for x
    x = 1,455,242,965.08/33,010.76
  6. Step 6: Final answer
    x = 44,083.90

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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.