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Finding the Fourth Proportional to 18,296.40, 27,444.60 and 16,870.80

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Solution

The fourth proportional to 18,296.40, 27,444.60 and 16,870.80 is: 25,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.40 : 27,444.60 = 16,870.80 : x
  2. Step 2: Convert to fraction form
    18,296.40/27,444.60 = 16,870.80/x
  3. Step 3: Cross multiply
    18,296.40x = 27,444.60 × 16,870.80
  4. Step 4: Simplify right side
    18,296.40x = 463,012,357.68
  5. Step 5: Solve for x
    x = 463,012,357.68/18,296.40
  6. Step 6: Final answer
    x = 25,306.20

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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.