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Finding the Fourth Proportional to 45,950.95, 63,404.86 and 28,721.28

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Solution

The fourth proportional to 45,950.95, 63,404.86 and 28,721.28 is: 39,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,950.95 : 63,404.86 = 28,721.28 : x
  2. Step 2: Convert to fraction form
    45,950.95/63,404.86 = 28,721.28/x
  3. Step 3: Cross multiply
    45,950.95x = 63,404.86 × 28,721.28
  4. Step 4: Simplify right side
    45,950.95x = 1,821,068,593.81
  5. Step 5: Solve for x
    x = 1,821,068,593.81/45,950.95
  6. Step 6: Final answer
    x = 39,630.71

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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.