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Finding the Fourth Proportional to 62,643.88, 86,448.90 and 33,963.76

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Solution

The fourth proportional to 62,643.88, 86,448.90 and 33,963.76 is: 46,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,643.88 : 86,448.90 = 33,963.76 : x
  2. Step 2: Convert to fraction form
    62,643.88/86,448.90 = 33,963.76/x
  3. Step 3: Cross multiply
    62,643.88x = 86,448.90 × 33,963.76
  4. Step 4: Simplify right side
    62,643.88x = 2,936,129,691.86
  5. Step 5: Solve for x
    x = 2,936,129,691.86/62,643.88
  6. Step 6: Final answer
    x = 46,870.18

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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.