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Finding the Fourth Proportional to 60,640.10, 90,963.52 and 18,526.58

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Solution

The fourth proportional to 60,640.10, 90,963.52 and 18,526.58 is: 27,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,640.10 : 90,963.52 = 18,526.58 : x
  2. Step 2: Convert to fraction form
    60,640.10/90,963.52 = 18,526.58/x
  3. Step 3: Cross multiply
    60,640.10x = 90,963.52 × 18,526.58
  4. Step 4: Simplify right side
    60,640.10x = 1,685,242,930.36
  5. Step 5: Solve for x
    x = 1,685,242,930.36/60,640.10
  6. Step 6: Final answer
    x = 27,790.90

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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.