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Finding the Fourth Proportional to 65,511.30, 90,396.46 and 36,827.04

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Solution

The fourth proportional to 65,511.30, 90,396.46 and 36,827.04 is: 50,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,511.30 : 90,396.46 = 36,827.04 : x
  2. Step 2: Convert to fraction form
    65,511.30/90,396.46 = 36,827.04/x
  3. Step 3: Cross multiply
    65,511.30x = 90,396.46 × 36,827.04
  4. Step 4: Simplify right side
    65,511.30x = 3,329,034,048.28
  5. Step 5: Solve for x
    x = 3,329,034,048.28/65,511.30
  6. Step 6: Final answer
    x = 50,816.18

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1.5x scale

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.