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Finding the Fourth Proportional to 9,503.60, 14,255.40 and 6,393.20

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Solution

The fourth proportional to 9,503.60, 14,255.40 and 6,393.20 is: 9,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,503.60 : 14,255.40 = 6,393.20 : x
  2. Step 2: Convert to fraction form
    9,503.60/14,255.40 = 6,393.20/x
  3. Step 3: Cross multiply
    9,503.60x = 14,255.40 × 6,393.20
  4. Step 4: Simplify right side
    9,503.60x = 91,137,623.28
  5. Step 5: Solve for x
    x = 91,137,623.28/9,503.60
  6. Step 6: Final answer
    x = 9,589.80

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Similar ratio
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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.