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Finding the Fourth Proportional to 14,262.86, 19,692.43 and 8,887.46

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Solution

The fourth proportional to 14,262.86, 19,692.43 and 8,887.46 is: 12,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,262.86 : 19,692.43 = 8,887.46 : x
  2. Step 2: Convert to fraction form
    14,262.86/19,692.43 = 8,887.46/x
  3. Step 3: Cross multiply
    14,262.86x = 19,692.43 × 8,887.46
  4. Step 4: Simplify right side
    14,262.86x = 175,015,563.25
  5. Step 5: Solve for x
    x = 175,015,563.25/14,262.86
  6. Step 6: Final answer
    x = 12,270.72

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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.