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Finding the Fourth Proportional to 43,702.34, 65,553.88 and 14,120.17

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Solution

The fourth proportional to 43,702.34, 65,553.88 and 14,120.17 is: 21,180.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,702.34 : 65,553.88 = 14,120.17 : x
  2. Step 2: Convert to fraction form
    43,702.34/65,553.88 = 14,120.17/x
  3. Step 3: Cross multiply
    43,702.34x = 65,553.88 × 14,120.17
  4. Step 4: Simplify right side
    43,702.34x = 925,632,029.35
  5. Step 5: Solve for x
    x = 925,632,029.35/43,702.34
  6. Step 6: Final answer
    x = 21,180.38

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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.