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Finding the Fourth Proportional to 96,980.54, 145,470.80 and 26,859.85

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Solution

The fourth proportional to 96,980.54, 145,470.80 and 26,859.85 is: 40,289.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,980.54 : 145,470.80 = 26,859.85 : x
  2. Step 2: Convert to fraction form
    96,980.54/145,470.80 = 26,859.85/x
  3. Step 3: Cross multiply
    96,980.54x = 145,470.80 × 26,859.85
  4. Step 4: Simplify right side
    96,980.54x = 3,907,323,369.40
  5. Step 5: Solve for x
    x = 3,907,323,369.40/96,980.54
  6. Step 6: Final answer
    x = 40,289.77

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1.5x scale

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.