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Finding the Fourth Proportional to 23,407.20, 35,110.80 and 16,879.20

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Solution

The fourth proportional to 23,407.20, 35,110.80 and 16,879.20 is: 25,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,407.20 : 35,110.80 = 16,879.20 : x
  2. Step 2: Convert to fraction form
    23,407.20/35,110.80 = 16,879.20/x
  3. Step 3: Cross multiply
    23,407.20x = 35,110.80 × 16,879.20
  4. Step 4: Simplify right side
    23,407.20x = 592,642,215.36
  5. Step 5: Solve for x
    x = 592,642,215.36/23,407.20
  6. Step 6: Final answer
    x = 25,318.80

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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.