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Finding the Fourth Proportional to 29,408.88, 40,572.72 and 16,826.88

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Solution

The fourth proportional to 29,408.88, 40,572.72 and 16,826.88 is: 23,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,408.88 : 40,572.72 = 16,826.88 : x
  2. Step 2: Convert to fraction form
    29,408.88/40,572.72 = 16,826.88/x
  3. Step 3: Cross multiply
    29,408.88x = 40,572.72 × 16,826.88
  4. Step 4: Simplify right side
    29,408.88x = 682,712,290.71
  5. Step 5: Solve for x
    x = 682,712,290.71/29,408.88
  6. Step 6: Final answer
    x = 23,214.49

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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.