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Finding the Fourth Proportional to 29,710.76, 40,995.65 and 16,958.12

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Solution

The fourth proportional to 29,710.76, 40,995.65 and 16,958.12 is: 23,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,710.76 : 40,995.65 = 16,958.12 : x
  2. Step 2: Convert to fraction form
    29,710.76/40,995.65 = 16,958.12/x
  3. Step 3: Cross multiply
    29,710.76x = 40,995.65 × 16,958.12
  4. Step 4: Simplify right side
    29,710.76x = 695,208,862.41
  5. Step 5: Solve for x
    x = 695,208,862.41/29,710.76
  6. Step 6: Final answer
    x = 23,399.23

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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.