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Finding the Fourth Proportional to 6,325.78, 8,741.18 and 5,483.79

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Solution

The fourth proportional to 6,325.78, 8,741.18 and 5,483.79 is: 7,577.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,325.78 : 8,741.18 = 5,483.79 : x
  2. Step 2: Convert to fraction form
    6,325.78/8,741.18 = 5,483.79/x
  3. Step 3: Cross multiply
    6,325.78x = 8,741.18 × 5,483.79
  4. Step 4: Simplify right side
    6,325.78x = 47,934,795.47
  5. Step 5: Solve for x
    x = 47,934,795.47/6,325.78
  6. Step 6: Final answer
    x = 7,577.69

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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.