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Finding the Fourth Proportional to 12,329.64, 18,494.48 and 3,095.64

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Solution

The fourth proportional to 12,329.64, 18,494.48 and 3,095.64 is: 4,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.64 : 18,494.48 = 3,095.64 : x
  2. Step 2: Convert to fraction form
    12,329.64/18,494.48 = 3,095.64/x
  3. Step 3: Cross multiply
    12,329.64x = 18,494.48 × 3,095.64
  4. Step 4: Simplify right side
    12,329.64x = 57,252,252.07
  5. Step 5: Solve for x
    x = 57,252,252.07/12,329.64
  6. Step 6: Final answer
    x = 4,643.47

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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.