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Finding the Fourth Proportional to 29,341.44, 40,491.04 and 15,912.64

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Solution

The fourth proportional to 29,341.44, 40,491.04 and 15,912.64 is: 21,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,341.44 : 40,491.04 = 15,912.64 : x
  2. Step 2: Convert to fraction form
    29,341.44/40,491.04 = 15,912.64/x
  3. Step 3: Cross multiply
    29,341.44x = 40,491.04 × 15,912.64
  4. Step 4: Simplify right side
    29,341.44x = 644,319,342.75
  5. Step 5: Solve for x
    x = 644,319,342.75/29,341.44
  6. Step 6: Final answer
    x = 21,959.36

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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.