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Finding the Fourth Proportional to 14,447.57, 19,938.08 and 8,073.95

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Solution

The fourth proportional to 14,447.57, 19,938.08 and 8,073.95 is: 11,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,447.57 : 19,938.08 = 8,073.95 : x
  2. Step 2: Convert to fraction form
    14,447.57/19,938.08 = 8,073.95/x
  3. Step 3: Cross multiply
    14,447.57x = 19,938.08 × 8,073.95
  4. Step 4: Simplify right side
    14,447.57x = 160,979,061.02
  5. Step 5: Solve for x
    x = 160,979,061.02/14,447.57
  6. Step 6: Final answer
    x = 11,142.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.