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Finding the Fourth Proportional to 19,292.96, 28,954.01 and 8,207.45

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Solution

The fourth proportional to 19,292.96, 28,954.01 and 8,207.45 is: 12,317.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,292.96 : 28,954.01 = 8,207.45 : x
  2. Step 2: Convert to fraction form
    19,292.96/28,954.01 = 8,207.45/x
  3. Step 3: Cross multiply
    19,292.96x = 28,954.01 × 8,207.45
  4. Step 4: Simplify right side
    19,292.96x = 237,638,573.70
  5. Step 5: Solve for x
    x = 237,638,573.70/19,292.96
  6. Step 6: Final answer
    x = 12,317.38

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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.