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Finding the Fourth Proportional to 25,702.44, 35,485.70 and 19,722.76

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Solution

The fourth proportional to 25,702.44, 35,485.70 and 19,722.76 is: 27,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,702.44 : 35,485.70 = 19,722.76 : x
  2. Step 2: Convert to fraction form
    25,702.44/35,485.70 = 19,722.76/x
  3. Step 3: Cross multiply
    25,702.44x = 35,485.70 × 19,722.76
  4. Step 4: Simplify right side
    25,702.44x = 699,875,944.53
  5. Step 5: Solve for x
    x = 699,875,944.53/25,702.44
  6. Step 6: Final answer
    x = 27,229.94

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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.