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Finding the Fourth Proportional to 29,576.41, 40,820.14 and 18,810.06

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Solution

The fourth proportional to 29,576.41, 40,820.14 and 18,810.06 is: 25,960.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,576.41 : 40,820.14 = 18,810.06 : x
  2. Step 2: Convert to fraction form
    29,576.41/40,820.14 = 18,810.06/x
  3. Step 3: Cross multiply
    29,576.41x = 40,820.14 × 18,810.06
  4. Step 4: Simplify right side
    29,576.41x = 767,829,188.56
  5. Step 5: Solve for x
    x = 767,829,188.56/29,576.41
  6. Step 6: Final answer
    x = 25,960.87

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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.