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Finding the Fourth Proportional to 55,203.10, 82,809.15 and 23,613.40

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Solution

The fourth proportional to 55,203.10, 82,809.15 and 23,613.40 is: 35,422.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,203.10 : 82,809.15 = 23,613.40 : x
  2. Step 2: Convert to fraction form
    55,203.10/82,809.15 = 23,613.40/x
  3. Step 3: Cross multiply
    55,203.10x = 82,809.15 × 23,613.40
  4. Step 4: Simplify right side
    55,203.10x = 1,955,405,582.61
  5. Step 5: Solve for x
    x = 1,955,405,582.61/55,203.10
  6. Step 6: Final answer
    x = 35,422.02

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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.