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Finding the Fourth Proportional to 66,510.98, 91,782.06 and 36,297.56

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Solution

The fourth proportional to 66,510.98, 91,782.06 and 36,297.56 is: 50,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,510.98 : 91,782.06 = 36,297.56 : x
  2. Step 2: Convert to fraction form
    66,510.98/91,782.06 = 36,297.56/x
  3. Step 3: Cross multiply
    66,510.98x = 91,782.06 × 36,297.56
  4. Step 4: Simplify right side
    66,510.98x = 3,331,464,829.77
  5. Step 5: Solve for x
    x = 3,331,464,829.77/66,510.98
  6. Step 6: Final answer
    x = 50,088.95

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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.