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Finding the Fourth Proportional to 48,612.30, 72,918.46 and 11,676.30

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Solution

The fourth proportional to 48,612.30, 72,918.46 and 11,676.30 is: 17,514.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,612.30 : 72,918.46 = 11,676.30 : x
  2. Step 2: Convert to fraction form
    48,612.30/72,918.46 = 11,676.30/x
  3. Step 3: Cross multiply
    48,612.30x = 72,918.46 × 11,676.30
  4. Step 4: Simplify right side
    48,612.30x = 851,417,814.50
  5. Step 5: Solve for x
    x = 851,417,814.50/48,612.30
  6. Step 6: Final answer
    x = 17,514.45

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Similar ratio
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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.