Home / 41,280.72-61,929.88-11,707.60

Finding the Fourth Proportional to 41,280.72, 61,929.88 and 11,707.60

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Solution

The fourth proportional to 41,280.72, 61,929.88 and 11,707.60 is: 17,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,280.72 : 61,929.88 = 11,707.60 : x
  2. Step 2: Convert to fraction form
    41,280.72/61,929.88 = 11,707.60/x
  3. Step 3: Cross multiply
    41,280.72x = 61,929.88 × 11,707.60
  4. Step 4: Simplify right side
    41,280.72x = 725,050,263.09
  5. Step 5: Solve for x
    x = 725,050,263.09/41,280.72
  6. Step 6: Final answer
    x = 17,563.90

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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.