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Finding the Fourth Proportional to 29,508.98, 40,721.86 and 16,080.32

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Solution

The fourth proportional to 29,508.98, 40,721.86 and 16,080.32 is: 22,190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,508.98 : 40,721.86 = 16,080.32 : x
  2. Step 2: Convert to fraction form
    29,508.98/40,721.86 = 16,080.32/x
  3. Step 3: Cross multiply
    29,508.98x = 40,721.86 × 16,080.32
  4. Step 4: Simplify right side
    29,508.98x = 654,820,539.80
  5. Step 5: Solve for x
    x = 654,820,539.80/29,508.98
  6. Step 6: Final answer
    x = 22,190.55

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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.