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Finding the Fourth Proportional to 39,134.88, 53,965.54 and 33,488.32

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Solution

The fourth proportional to 39,134.88, 53,965.54 and 33,488.32 is: 46,179.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,134.88 : 53,965.54 = 33,488.32 : x
  2. Step 2: Convert to fraction form
    39,134.88/53,965.54 = 33,488.32/x
  3. Step 3: Cross multiply
    39,134.88x = 53,965.54 × 33,488.32
  4. Step 4: Simplify right side
    39,134.88x = 1,807,215,272.49
  5. Step 5: Solve for x
    x = 1,807,215,272.49/39,134.88
  6. Step 6: Final answer
    x = 46,179.14

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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.