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Finding the Fourth Proportional to 66,254.66, 91,433.10 and 36,041.68

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Solution

The fourth proportional to 66,254.66, 91,433.10 and 36,041.68 is: 49,738.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,254.66 : 91,433.10 = 36,041.68 : x
  2. Step 2: Convert to fraction form
    66,254.66/91,433.10 = 36,041.68/x
  3. Step 3: Cross multiply
    66,254.66x = 91,433.10 × 36,041.68
  4. Step 4: Simplify right side
    66,254.66x = 3,295,402,531.61
  5. Step 5: Solve for x
    x = 3,295,402,531.61/66,254.66
  6. Step 6: Final answer
    x = 49,738.43

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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.