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Finding the Fourth Proportional to 8,397.72, 11,592.60 and 6,159.60

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Solution

The fourth proportional to 8,397.72, 11,592.60 and 6,159.60 is: 8,503.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.72 : 11,592.60 = 6,159.60 : x
  2. Step 2: Convert to fraction form
    8,397.72/11,592.60 = 6,159.60/x
  3. Step 3: Cross multiply
    8,397.72x = 11,592.60 × 6,159.60
  4. Step 4: Simplify right side
    8,397.72x = 71,405,778.96
  5. Step 5: Solve for x
    x = 71,405,778.96/8,397.72
  6. Step 6: Final answer
    x = 8,503.00

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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.