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Finding the Fourth Proportional to 60,558.93, 90,838.44 and 28,961.55

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Solution

The fourth proportional to 60,558.93, 90,838.44 and 28,961.55 is: 43,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,558.93 : 90,838.44 = 28,961.55 : x
  2. Step 2: Convert to fraction form
    60,558.93/90,838.44 = 28,961.55/x
  3. Step 3: Cross multiply
    60,558.93x = 90,838.44 × 28,961.55
  4. Step 4: Simplify right side
    60,558.93x = 2,630,822,021.98
  5. Step 5: Solve for x
    x = 2,630,822,021.98/60,558.93
  6. Step 6: Final answer
    x = 43,442.35

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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.