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Finding the Fourth Proportional to 55,508.92, 76,602.91 and 30,357.88

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Solution

The fourth proportional to 55,508.92, 76,602.91 and 30,357.88 is: 41,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,508.92 : 76,602.91 = 30,357.88 : x
  2. Step 2: Convert to fraction form
    55,508.92/76,602.91 = 30,357.88/x
  3. Step 3: Cross multiply
    55,508.92x = 76,602.91 × 30,357.88
  4. Step 4: Simplify right side
    55,508.92x = 2,325,501,566.42
  5. Step 5: Solve for x
    x = 2,325,501,566.42/55,508.92
  6. Step 6: Final answer
    x = 41,894.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.