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Finding the Fourth Proportional to 30,571.39, 45,789.30 and 23,499.28

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Solution

The fourth proportional to 30,571.39, 45,789.30 and 23,499.28 is: 35,196.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.39 : 45,789.30 = 23,499.28 : x
  2. Step 2: Convert to fraction form
    30,571.39/45,789.30 = 23,499.28/x
  3. Step 3: Cross multiply
    30,571.39x = 45,789.30 × 23,499.28
  4. Step 4: Simplify right side
    30,571.39x = 1,076,015,581.70
  5. Step 5: Solve for x
    x = 1,076,015,581.70/30,571.39
  6. Step 6: Final answer
    x = 35,196.82

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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.