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Finding the Fourth Proportional to 6,472.99, 8,933.20 and 3,955.58

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Solution

The fourth proportional to 6,472.99, 8,933.20 and 3,955.58 is: 5,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,472.99 : 8,933.20 = 3,955.58 : x
  2. Step 2: Convert to fraction form
    6,472.99/8,933.20 = 3,955.58/x
  3. Step 3: Cross multiply
    6,472.99x = 8,933.20 × 3,955.58
  4. Step 4: Simplify right side
    6,472.99x = 35,335,987.26
  5. Step 5: Solve for x
    x = 35,335,987.26/6,472.99
  6. Step 6: Final answer
    x = 5,458.99

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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.