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Finding the Fourth Proportional to 25,957.80, 35,799.70 and 21,944.20

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Solution

The fourth proportional to 25,957.80, 35,799.70 and 21,944.20 is: 30,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,957.80 : 35,799.70 = 21,944.20 : x
  2. Step 2: Convert to fraction form
    25,957.80/35,799.70 = 21,944.20/x
  3. Step 3: Cross multiply
    25,957.80x = 35,799.70 × 21,944.20
  4. Step 4: Simplify right side
    25,957.80x = 785,595,776.74
  5. Step 5: Solve for x
    x = 785,595,776.74/25,957.80
  6. Step 6: Final answer
    x = 30,264.34

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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.