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Finding the Fourth Proportional to 26,572.49, 39,856.31 and 8,104.49

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Solution

The fourth proportional to 26,572.49, 39,856.31 and 8,104.49 is: 12,156.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,572.49 : 39,856.31 = 8,104.49 : x
  2. Step 2: Convert to fraction form
    26,572.49/39,856.31 = 8,104.49/x
  3. Step 3: Cross multiply
    26,572.49x = 39,856.31 × 8,104.49
  4. Step 4: Simplify right side
    26,572.49x = 323,015,155.34
  5. Step 5: Solve for x
    x = 323,015,155.34/26,572.49
  6. Step 6: Final answer
    x = 12,156.00

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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.