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Finding the Fourth Proportional to 35,149.77, 52,731.72 and 12,963.29

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Solution

The fourth proportional to 35,149.77, 52,731.72 and 12,963.29 is: 19,447.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,149.77 : 52,731.72 = 12,963.29 : x
  2. Step 2: Convert to fraction form
    35,149.77/52,731.72 = 12,963.29/x
  3. Step 3: Cross multiply
    35,149.77x = 52,731.72 × 12,963.29
  4. Step 4: Simplify right side
    35,149.77x = 683,576,314.90
  5. Step 5: Solve for x
    x = 683,576,314.90/35,149.77
  6. Step 6: Final answer
    x = 19,447.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.