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Finding the Fourth Proportional to 40,697.46, 61,042.73 and 12,616.88

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Solution

The fourth proportional to 40,697.46, 61,042.73 and 12,616.88 is: 18,924.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,697.46 : 61,042.73 = 12,616.88 : x
  2. Step 2: Convert to fraction form
    40,697.46/61,042.73 = 12,616.88/x
  3. Step 3: Cross multiply
    40,697.46x = 61,042.73 × 12,616.88
  4. Step 4: Simplify right side
    40,697.46x = 770,168,430.98
  5. Step 5: Solve for x
    x = 770,168,430.98/40,697.46
  6. Step 6: Final answer
    x = 18,924.24

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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.