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Finding the Fourth Proportional to 19,260.57, 28,885.11 and 8,167.08

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Solution

The fourth proportional to 19,260.57, 28,885.11 and 8,167.08 is: 12,248.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,260.57 : 28,885.11 = 8,167.08 : x
  2. Step 2: Convert to fraction form
    19,260.57/28,885.11 = 8,167.08/x
  3. Step 3: Cross multiply
    19,260.57x = 28,885.11 × 8,167.08
  4. Step 4: Simplify right side
    19,260.57x = 235,907,004.18
  5. Step 5: Solve for x
    x = 235,907,004.18/19,260.57
  6. Step 6: Final answer
    x = 12,248.18

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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.