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Finding the Fourth Proportional to 65,246.85, 90,039.65 and 36,566.48

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Solution

The fourth proportional to 65,246.85, 90,039.65 and 36,566.48 is: 50,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,246.85 : 90,039.65 = 36,566.48 : x
  2. Step 2: Convert to fraction form
    65,246.85/90,039.65 = 36,566.48/x
  3. Step 3: Cross multiply
    65,246.85x = 90,039.65 × 36,566.48
  4. Step 4: Simplify right side
    65,246.85x = 3,292,432,427.90
  5. Step 5: Solve for x
    x = 3,292,432,427.90/65,246.85
  6. Step 6: Final answer
    x = 50,461.17

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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.