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Finding the Fourth Proportional to 6,472.95, 8,933.55 and 3,784.99

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Solution

The fourth proportional to 6,472.95, 8,933.55 and 3,784.99 is: 5,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,472.95 : 8,933.55 = 3,784.99 : x
  2. Step 2: Convert to fraction form
    6,472.95/8,933.55 = 3,784.99/x
  3. Step 3: Cross multiply
    6,472.95x = 8,933.55 × 3,784.99
  4. Step 4: Simplify right side
    6,472.95x = 33,813,416.81
  5. Step 5: Solve for x
    x = 33,813,416.81/6,472.95
  6. Step 6: Final answer
    x = 5,223.80

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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.