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Finding the Fourth Proportional to 6,784.12, 10,158 and 6,572.80

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Solution

The fourth proportional to 6,784.12, 10,158 and 6,572.80 is: 9,841.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,784.12 : 10,158 = 6,572.80 : x
  2. Step 2: Convert to fraction form
    6,784.12/10,158 = 6,572.80/x
  3. Step 3: Cross multiply
    6,784.12x = 10,158 × 6,572.80
  4. Step 4: Simplify right side
    6,784.12x = 66,766,502.40
  5. Step 5: Solve for x
    x = 66,766,502.40/6,784.12
  6. Step 6: Final answer
    x = 9,841.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.