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Finding the Fourth Proportional to 29,693.59, 40,961.61 and 18,359.46

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Solution

The fourth proportional to 29,693.59, 40,961.61 and 18,359.46 is: 25,326.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,693.59 : 40,961.61 = 18,359.46 : x
  2. Step 2: Convert to fraction form
    29,693.59/40,961.61 = 18,359.46/x
  3. Step 3: Cross multiply
    29,693.59x = 40,961.61 × 18,359.46
  4. Step 4: Simplify right side
    29,693.59x = 752,033,040.33
  5. Step 5: Solve for x
    x = 752,033,040.33/29,693.59
  6. Step 6: Final answer
    x = 25,326.45

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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.