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Finding the Fourth Proportional to 38,858.32, 53,646.60 and 25,648.72

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Solution

The fourth proportional to 38,858.32, 53,646.60 and 25,648.72 is: 35,409.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,858.32 : 53,646.60 = 25,648.72 : x
  2. Step 2: Convert to fraction form
    38,858.32/53,646.60 = 25,648.72/x
  3. Step 3: Cross multiply
    38,858.32x = 53,646.60 × 25,648.72
  4. Step 4: Simplify right side
    38,858.32x = 1,375,966,622.35
  5. Step 5: Solve for x
    x = 1,375,966,622.35/38,858.32
  6. Step 6: Final answer
    x = 35,409.83

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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.