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Finding the Fourth Proportional to 29,620.87, 40,876.88 and 16,192.28

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Solution

The fourth proportional to 29,620.87, 40,876.88 and 16,192.28 is: 22,345.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,620.87 : 40,876.88 = 16,192.28 : x
  2. Step 2: Convert to fraction form
    29,620.87/40,876.88 = 16,192.28/x
  3. Step 3: Cross multiply
    29,620.87x = 40,876.88 × 16,192.28
  4. Step 4: Simplify right side
    29,620.87x = 661,889,805.53
  5. Step 5: Solve for x
    x = 661,889,805.53/29,620.87
  6. Step 6: Final answer
    x = 22,345.39

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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.