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Finding the Fourth Proportional to 6,876, 9,483.12 and 5,925.60

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Solution

The fourth proportional to 6,876, 9,483.12 and 5,925.60 is: 8,172.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876 : 9,483.12 = 5,925.60 : x
  2. Step 2: Convert to fraction form
    6,876/9,483.12 = 5,925.60/x
  3. Step 3: Cross multiply
    6,876x = 9,483.12 × 5,925.60
  4. Step 4: Simplify right side
    6,876x = 56,193,175.87
  5. Step 5: Solve for x
    x = 56,193,175.87/6,876
  6. Step 6: Final answer
    x = 8,172.36

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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.