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Finding the Fourth Proportional to 67,633.10, 101,449.65 and 65,905.10

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Solution

The fourth proportional to 67,633.10, 101,449.65 and 65,905.10 is: 98,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,633.10 : 101,449.65 = 65,905.10 : x
  2. Step 2: Convert to fraction form
    67,633.10/101,449.65 = 65,905.10/x
  3. Step 3: Cross multiply
    67,633.10x = 101,449.65 × 65,905.10
  4. Step 4: Simplify right side
    67,633.10x = 6,686,049,328.22
  5. Step 5: Solve for x
    x = 6,686,049,328.22/67,633.10
  6. Step 6: Final answer
    x = 98,857.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.