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Finding the Fourth Proportional to 38,703.68, 53,379.36 and 25,958.96

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Solution

The fourth proportional to 38,703.68, 53,379.36 and 25,958.96 is: 35,802.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,703.68 : 53,379.36 = 25,958.96 : x
  2. Step 2: Convert to fraction form
    38,703.68/53,379.36 = 25,958.96/x
  3. Step 3: Cross multiply
    38,703.68x = 53,379.36 × 25,958.96
  4. Step 4: Simplify right side
    38,703.68x = 1,385,672,671.07
  5. Step 5: Solve for x
    x = 1,385,672,671.07/38,703.68
  6. Step 6: Final answer
    x = 35,802.09

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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.