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Finding the Fourth Proportional to 60,586.34, 90,879.56 and 28,988.94

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Solution

The fourth proportional to 60,586.34, 90,879.56 and 28,988.94 is: 43,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,586.34 : 90,879.56 = 28,988.94 : x
  2. Step 2: Convert to fraction form
    60,586.34/90,879.56 = 28,988.94/x
  3. Step 3: Cross multiply
    60,586.34x = 90,879.56 × 28,988.94
  4. Step 4: Simplify right side
    60,586.34x = 2,634,502,112.07
  5. Step 5: Solve for x
    x = 2,634,502,112.07/60,586.34
  6. Step 6: Final answer
    x = 43,483.43

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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.