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Finding the Fourth Proportional to 9,326.64, 13,989.96 and 3,403.96

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Solution

The fourth proportional to 9,326.64, 13,989.96 and 3,403.96 is: 5,105.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,326.64 : 13,989.96 = 3,403.96 : x
  2. Step 2: Convert to fraction form
    9,326.64/13,989.96 = 3,403.96/x
  3. Step 3: Cross multiply
    9,326.64x = 13,989.96 × 3,403.96
  4. Step 4: Simplify right side
    9,326.64x = 47,621,264.24
  5. Step 5: Solve for x
    x = 47,621,264.24/9,326.64
  6. Step 6: Final answer
    x = 5,105.94

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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.