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Finding the Fourth Proportional to 58,494.48, 87,657.48 and 45,285

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Solution

The fourth proportional to 58,494.48, 87,657.48 and 45,285 is: 67,862.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,494.48 : 87,657.48 = 45,285 : x
  2. Step 2: Convert to fraction form
    58,494.48/87,657.48 = 45,285/x
  3. Step 3: Cross multiply
    58,494.48x = 87,657.48 × 45,285
  4. Step 4: Simplify right side
    58,494.48x = 3,969,568,981.80
  5. Step 5: Solve for x
    x = 3,969,568,981.80/58,494.48
  6. Step 6: Final answer
    x = 67,862.28

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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.