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Finding the Fourth Proportional to 55,009.70, 82,514.55 and 36,347.30

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Solution

The fourth proportional to 55,009.70, 82,514.55 and 36,347.30 is: 54,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,009.70 : 82,514.55 = 36,347.30 : x
  2. Step 2: Convert to fraction form
    55,009.70/82,514.55 = 36,347.30/x
  3. Step 3: Cross multiply
    55,009.70x = 82,514.55 × 36,347.30
  4. Step 4: Simplify right side
    55,009.70x = 2,999,181,103.22
  5. Step 5: Solve for x
    x = 2,999,181,103.22/55,009.70
  6. Step 6: Final answer
    x = 54,520.95

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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.