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Finding the Fourth Proportional to 29,474.28, 40,675.14 and 16,728.28

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Solution

The fourth proportional to 29,474.28, 40,675.14 and 16,728.28 is: 23,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,474.28 : 40,675.14 = 16,728.28 : x
  2. Step 2: Convert to fraction form
    29,474.28/40,675.14 = 16,728.28/x
  3. Step 3: Cross multiply
    29,474.28x = 40,675.14 × 16,728.28
  4. Step 4: Simplify right side
    29,474.28x = 680,425,130.96
  5. Step 5: Solve for x
    x = 680,425,130.96/29,474.28
  6. Step 6: Final answer
    x = 23,085.39

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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.