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Finding the Fourth Proportional to 29,696.48, 40,981.21 and 16,267.79

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Solution

The fourth proportional to 29,696.48, 40,981.21 and 16,267.79 is: 22,449.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,696.48 : 40,981.21 = 16,267.79 : x
  2. Step 2: Convert to fraction form
    29,696.48/40,981.21 = 16,267.79/x
  3. Step 3: Cross multiply
    29,696.48x = 40,981.21 × 16,267.79
  4. Step 4: Simplify right side
    29,696.48x = 666,673,718.23
  5. Step 5: Solve for x
    x = 666,673,718.23/29,696.48
  6. Step 6: Final answer
    x = 22,449.59

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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.