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Finding the Fourth Proportional to 6,485.96, 8,951.22 and 5,070.92

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Solution

The fourth proportional to 6,485.96, 8,951.22 and 5,070.92 is: 6,998.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,485.96 : 8,951.22 = 5,070.92 : x
  2. Step 2: Convert to fraction form
    6,485.96/8,951.22 = 5,070.92/x
  3. Step 3: Cross multiply
    6,485.96x = 8,951.22 × 5,070.92
  4. Step 4: Simplify right side
    6,485.96x = 45,390,920.52
  5. Step 5: Solve for x
    x = 45,390,920.52/6,485.96
  6. Step 6: Final answer
    x = 6,998.33

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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.