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Finding the Fourth Proportional to 25,710.80, 35,481.36 and 14,532.80

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Solution

The fourth proportional to 25,710.80, 35,481.36 and 14,532.80 is: 20,055.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,710.80 : 35,481.36 = 14,532.80 : x
  2. Step 2: Convert to fraction form
    25,710.80/35,481.36 = 14,532.80/x
  3. Step 3: Cross multiply
    25,710.80x = 35,481.36 × 14,532.80
  4. Step 4: Simplify right side
    25,710.80x = 515,643,508.61
  5. Step 5: Solve for x
    x = 515,643,508.61/25,710.80
  6. Step 6: Final answer
    x = 20,055.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.