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Finding the Fourth Proportional to 18,084.20, 25,376.20 and 18,084.20

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Solution

The fourth proportional to 18,084.20, 25,376.20 and 18,084.20 is: 25,376.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,084.20 : 25,376.20 = 18,084.20 : x
  2. Step 2: Convert to fraction form
    18,084.20/25,376.20 = 18,084.20/x
  3. Step 3: Cross multiply
    18,084.20x = 25,376.20 × 18,084.20
  4. Step 4: Simplify right side
    18,084.20x = 458,908,276.04
  5. Step 5: Solve for x
    x = 458,908,276.04/18,084.20
  6. Step 6: Final answer
    x = 25,376.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.