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Finding the Fourth Proportional to 69,673.12, 104,432.24 and 34,638.24

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Solution

The fourth proportional to 69,673.12, 104,432.24 and 34,638.24 is: 51,918.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,673.12 : 104,432.24 = 34,638.24 : x
  2. Step 2: Convert to fraction form
    69,673.12/104,432.24 = 34,638.24/x
  3. Step 3: Cross multiply
    69,673.12x = 104,432.24 × 34,638.24
  4. Step 4: Simplify right side
    69,673.12x = 3,617,348,992.86
  5. Step 5: Solve for x
    x = 3,617,348,992.86/69,673.12
  6. Step 6: Final answer
    x = 51,918.86

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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.