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Finding the Fourth Proportional to 65,846.50, 90,868.17 and 36,038.50

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Solution

The fourth proportional to 65,846.50, 90,868.17 and 36,038.50 is: 49,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,846.50 : 90,868.17 = 36,038.50 : x
  2. Step 2: Convert to fraction form
    65,846.50/90,868.17 = 36,038.50/x
  3. Step 3: Cross multiply
    65,846.50x = 90,868.17 × 36,038.50
  4. Step 4: Simplify right side
    65,846.50x = 3,274,752,544.55
  5. Step 5: Solve for x
    x = 3,274,752,544.55/65,846.50
  6. Step 6: Final answer
    x = 49,733.13

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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.