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Finding the Fourth Proportional to 45,859.86, 63,259.79 and 28,837.15

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Solution

The fourth proportional to 45,859.86, 63,259.79 and 28,837.15 is: 39,778.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,859.86 : 63,259.79 = 28,837.15 : x
  2. Step 2: Convert to fraction form
    45,859.86/63,259.79 = 28,837.15/x
  3. Step 3: Cross multiply
    45,859.86x = 63,259.79 × 28,837.15
  4. Step 4: Simplify right side
    45,859.86x = 1,824,231,909.01
  5. Step 5: Solve for x
    x = 1,824,231,909.01/45,859.86
  6. Step 6: Final answer
    x = 39,778.41

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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.