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Finding the Fourth Proportional to 38,695, 53,410.50 and 25,268.32

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Solution

The fourth proportional to 38,695, 53,410.50 and 25,268.32 is: 34,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,695 : 53,410.50 = 25,268.32 : x
  2. Step 2: Convert to fraction form
    38,695/53,410.50 = 25,268.32/x
  3. Step 3: Cross multiply
    38,695x = 53,410.50 × 25,268.32
  4. Step 4: Simplify right side
    38,695x = 1,349,593,605.36
  5. Step 5: Solve for x
    x = 1,349,593,605.36/38,695
  6. Step 6: Final answer
    x = 34,877.73

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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.