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Finding the Fourth Proportional to 6,651.59, 9,178.58 and 4,257.35

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Solution

The fourth proportional to 6,651.59, 9,178.58 and 4,257.35 is: 5,874.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.59 : 9,178.58 = 4,257.35 : x
  2. Step 2: Convert to fraction form
    6,651.59/9,178.58 = 4,257.35/x
  3. Step 3: Cross multiply
    6,651.59x = 9,178.58 × 4,257.35
  4. Step 4: Simplify right side
    6,651.59x = 39,076,429.22
  5. Step 5: Solve for x
    x = 39,076,429.22/6,651.59
  6. Step 6: Final answer
    x = 5,874.75

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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.