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Finding the Fourth Proportional to 18,616.40, 27,924.60 and 6,304.40

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Solution

The fourth proportional to 18,616.40, 27,924.60 and 6,304.40 is: 9,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.40 : 27,924.60 = 6,304.40 : x
  2. Step 2: Convert to fraction form
    18,616.40/27,924.60 = 6,304.40/x
  3. Step 3: Cross multiply
    18,616.40x = 27,924.60 × 6,304.40
  4. Step 4: Simplify right side
    18,616.40x = 176,047,848.24
  5. Step 5: Solve for x
    x = 176,047,848.24/18,616.40
  6. Step 6: Final answer
    x = 9,456.60

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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.