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Finding the Fourth Proportional to 6,416.53, 8,854.55 and 3,583.86

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Solution

The fourth proportional to 6,416.53, 8,854.55 and 3,583.86 is: 4,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.53 : 8,854.55 = 3,583.86 : x
  2. Step 2: Convert to fraction form
    6,416.53/8,854.55 = 3,583.86/x
  3. Step 3: Cross multiply
    6,416.53x = 8,854.55 × 3,583.86
  4. Step 4: Simplify right side
    6,416.53x = 31,733,429.88
  5. Step 5: Solve for x
    x = 31,733,429.88/6,416.53
  6. Step 6: Final answer
    x = 4,945.58

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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.