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Finding the Fourth Proportional to 39,039, 53,859.12 and 25,617.66

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Solution

The fourth proportional to 39,039, 53,859.12 and 25,617.66 is: 35,342.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,039 : 53,859.12 = 25,617.66 : x
  2. Step 2: Convert to fraction form
    39,039/53,859.12 = 25,617.66/x
  3. Step 3: Cross multiply
    39,039x = 53,859.12 × 25,617.66
  4. Step 4: Simplify right side
    39,039x = 1,379,744,624.06
  5. Step 5: Solve for x
    x = 1,379,744,624.06/39,039
  6. Step 6: Final answer
    x = 35,342.72

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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.