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Finding the Fourth Proportional to 12,609.84, 17,400.84 and 7,304.28

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Solution

The fourth proportional to 12,609.84, 17,400.84 and 7,304.28 is: 10,079.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.84 : 17,400.84 = 7,304.28 : x
  2. Step 2: Convert to fraction form
    12,609.84/17,400.84 = 7,304.28/x
  3. Step 3: Cross multiply
    12,609.84x = 17,400.84 × 7,304.28
  4. Step 4: Simplify right side
    12,609.84x = 127,100,607.60
  5. Step 5: Solve for x
    x = 127,100,607.60/12,609.84
  6. Step 6: Final answer
    x = 10,079.48

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Similar ratio
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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.