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Finding the Fourth Proportional to 19,210.00, 28,817.98 and 8,116.74

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Solution

The fourth proportional to 19,210.00, 28,817.98 and 8,116.74 is: 12,176.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,210.00 : 28,817.98 = 8,116.74 : x
  2. Step 2: Convert to fraction form
    19,210.00/28,817.98 = 8,116.74/x
  3. Step 3: Cross multiply
    19,210.00x = 28,817.98 × 8,116.74
  4. Step 4: Simplify right side
    19,210.00x = 233,907,958.65
  5. Step 5: Solve for x
    x = 233,907,958.65/19,210.00
  6. Step 6: Final answer
    x = 12,176.37

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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.