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Finding the Fourth Proportional to 25,608.40, 38,346.08 and 21,934.24

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Solution

The fourth proportional to 25,608.40, 38,346.08 and 21,934.24 is: 32,844.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,608.40 : 38,346.08 = 21,934.24 : x
  2. Step 2: Convert to fraction form
    25,608.40/38,346.08 = 21,934.24/x
  3. Step 3: Cross multiply
    25,608.40x = 38,346.08 × 21,934.24
  4. Step 4: Simplify right side
    25,608.40x = 841,092,121.78
  5. Step 5: Solve for x
    x = 841,092,121.78/25,608.40
  6. Step 6: Final answer
    x = 32,844.38

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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.