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Finding the Fourth Proportional to 60,646.60, 90,859.06 and 43,965.28

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Solution

The fourth proportional to 60,646.60, 90,859.06 and 43,965.28 is: 65,867.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,646.60 : 90,859.06 = 43,965.28 : x
  2. Step 2: Convert to fraction form
    60,646.60/90,859.06 = 43,965.28/x
  3. Step 3: Cross multiply
    60,646.60x = 90,859.06 × 43,965.28
  4. Step 4: Simplify right side
    60,646.60x = 3,994,644,013.44
  5. Step 5: Solve for x
    x = 3,994,644,013.44/60,646.60
  6. Step 6: Final answer
    x = 65,867.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.