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Finding the Fourth Proportional to 69,407.18, 104,153.59 and 27,279.86

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Solution

The fourth proportional to 69,407.18, 104,153.59 and 27,279.86 is: 40,936.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,407.18 : 104,153.59 = 27,279.86 : x
  2. Step 2: Convert to fraction form
    69,407.18/104,153.59 = 27,279.86/x
  3. Step 3: Cross multiply
    69,407.18x = 104,153.59 × 27,279.86
  4. Step 4: Simplify right side
    69,407.18x = 2,841,294,832.93
  5. Step 5: Solve for x
    x = 2,841,294,832.93/69,407.18
  6. Step 6: Final answer
    x = 40,936.62

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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.