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Finding the Fourth Proportional to 18,624.84, 25,702.04 and 13,866.05

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Solution

The fourth proportional to 18,624.84, 25,702.04 and 13,866.05 is: 19,134.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,624.84 : 25,702.04 = 13,866.05 : x
  2. Step 2: Convert to fraction form
    18,624.84/25,702.04 = 13,866.05/x
  3. Step 3: Cross multiply
    18,624.84x = 25,702.04 × 13,866.05
  4. Step 4: Simplify right side
    18,624.84x = 356,385,573.90
  5. Step 5: Solve for x
    x = 356,385,573.90/18,624.84
  6. Step 6: Final answer
    x = 19,134.96

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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.