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Finding the Fourth Proportional to 29,665.29, 40,949.91 and 19,460.21

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Solution

The fourth proportional to 29,665.29, 40,949.91 and 19,460.21 is: 26,862.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,665.29 : 40,949.91 = 19,460.21 : x
  2. Step 2: Convert to fraction form
    29,665.29/40,949.91 = 19,460.21/x
  3. Step 3: Cross multiply
    29,665.29x = 40,949.91 × 19,460.21
  4. Step 4: Simplify right side
    29,665.29x = 796,893,950.46
  5. Step 5: Solve for x
    x = 796,893,950.46/29,665.29
  6. Step 6: Final answer
    x = 26,862.84

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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.