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Finding the Fourth Proportional to 14,463.75, 19,961.45 and 8,798.90

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Solution

The fourth proportional to 14,463.75, 19,961.45 and 8,798.90 is: 12,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,463.75 : 19,961.45 = 8,798.90 : x
  2. Step 2: Convert to fraction form
    14,463.75/19,961.45 = 8,798.90/x
  3. Step 3: Cross multiply
    14,463.75x = 19,961.45 × 8,798.90
  4. Step 4: Simplify right side
    14,463.75x = 175,638,658.60
  5. Step 5: Solve for x
    x = 175,638,658.60/14,463.75
  6. Step 6: Final answer
    x = 12,143.37

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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.