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Finding the Fourth Proportional to 7,125.77, 9,832.88 and 4,141.56

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Solution

The fourth proportional to 7,125.77, 9,832.88 and 4,141.56 is: 5,714.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.77 : 9,832.88 = 4,141.56 : x
  2. Step 2: Convert to fraction form
    7,125.77/9,832.88 = 4,141.56/x
  3. Step 3: Cross multiply
    7,125.77x = 9,832.88 × 4,141.56
  4. Step 4: Simplify right side
    7,125.77x = 40,723,441.79
  5. Step 5: Solve for x
    x = 40,723,441.79/7,125.77
  6. Step 6: Final answer
    x = 5,714.96

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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.