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Finding the Fourth Proportional to 58,314.99, 87,454.03 and 18,862.88

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Solution

The fourth proportional to 58,314.99, 87,454.03 and 18,862.88 is: 28,288.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,314.99 : 87,454.03 = 18,862.88 : x
  2. Step 2: Convert to fraction form
    58,314.99/87,454.03 = 18,862.88/x
  3. Step 3: Cross multiply
    58,314.99x = 87,454.03 × 18,862.88
  4. Step 4: Simplify right side
    58,314.99x = 1,649,634,424.35
  5. Step 5: Solve for x
    x = 1,649,634,424.35/58,314.99
  6. Step 6: Final answer
    x = 28,288.34

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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.