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Finding the Fourth Proportional to 29,560.63, 40,790.08 and 16,815.43

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Solution

The fourth proportional to 29,560.63, 40,790.08 and 16,815.43 is: 23,203.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,560.63 : 40,790.08 = 16,815.43 : x
  2. Step 2: Convert to fraction form
    29,560.63/40,790.08 = 16,815.43/x
  3. Step 3: Cross multiply
    29,560.63x = 40,790.08 × 16,815.43
  4. Step 4: Simplify right side
    29,560.63x = 685,902,590.92
  5. Step 5: Solve for x
    x = 685,902,590.92/29,560.63
  6. Step 6: Final answer
    x = 23,203.25

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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.