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Finding the Fourth Proportional to 58,477.80, 87,704.10 and 18,499.92

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Solution

The fourth proportional to 58,477.80, 87,704.10 and 18,499.92 is: 27,745.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,477.80 : 87,704.10 = 18,499.92 : x
  2. Step 2: Convert to fraction form
    58,477.80/87,704.10 = 18,499.92/x
  3. Step 3: Cross multiply
    58,477.80x = 87,704.10 × 18,499.92
  4. Step 4: Simplify right side
    58,477.80x = 1,622,518,833.67
  5. Step 5: Solve for x
    x = 1,622,518,833.67/58,477.80
  6. Step 6: Final answer
    x = 27,745.89

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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.