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Finding the Fourth Proportional to 58,882.90, 81,226.86 and 40,946.77

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Solution

The fourth proportional to 58,882.90, 81,226.86 and 40,946.77 is: 56,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,882.90 : 81,226.86 = 40,946.77 : x
  2. Step 2: Convert to fraction form
    58,882.90/81,226.86 = 40,946.77/x
  3. Step 3: Cross multiply
    58,882.90x = 81,226.86 × 40,946.77
  4. Step 4: Simplify right side
    58,882.90x = 3,325,977,554.24
  5. Step 5: Solve for x
    x = 3,325,977,554.24/58,882.90
  6. Step 6: Final answer
    x = 56,484.61

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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.