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Finding the Fourth Proportional to 9,326.40, 13,989.60 and 6,043.20

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Solution

The fourth proportional to 9,326.40, 13,989.60 and 6,043.20 is: 9,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,326.40 : 13,989.60 = 6,043.20 : x
  2. Step 2: Convert to fraction form
    9,326.40/13,989.60 = 6,043.20/x
  3. Step 3: Cross multiply
    9,326.40x = 13,989.60 × 6,043.20
  4. Step 4: Simplify right side
    9,326.40x = 84,541,950.72
  5. Step 5: Solve for x
    x = 84,541,950.72/9,326.40
  6. Step 6: Final answer
    x = 9,064.80

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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.