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Finding the Fourth Proportional to 7,199.53, 9,937.21 and 4,687.92

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Solution

The fourth proportional to 7,199.53, 9,937.21 and 4,687.92 is: 6,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.53 : 9,937.21 = 4,687.92 : x
  2. Step 2: Convert to fraction form
    7,199.53/9,937.21 = 4,687.92/x
  3. Step 3: Cross multiply
    7,199.53x = 9,937.21 × 4,687.92
  4. Step 4: Simplify right side
    7,199.53x = 46,584,845.50
  5. Step 5: Solve for x
    x = 46,584,845.50/7,199.53
  6. Step 6: Final answer
    x = 6,470.54

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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.