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Finding the Fourth Proportional to 18,914.25, 26,101.85 and 10,530.93

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Solution

The fourth proportional to 18,914.25, 26,101.85 and 10,530.93 is: 14,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,914.25 : 26,101.85 = 10,530.93 : x
  2. Step 2: Convert to fraction form
    18,914.25/26,101.85 = 10,530.93/x
  3. Step 3: Cross multiply
    18,914.25x = 26,101.85 × 10,530.93
  4. Step 4: Simplify right side
    18,914.25x = 274,876,702.57
  5. Step 5: Solve for x
    x = 274,876,702.57/18,914.25
  6. Step 6: Final answer
    x = 14,532.78

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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.