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Finding the Fourth Proportional to 29,429.39, 40,619.00 and 19,358.82

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Solution

The fourth proportional to 29,429.39, 40,619.00 and 19,358.82 is: 26,719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,429.39 : 40,619.00 = 19,358.82 : x
  2. Step 2: Convert to fraction form
    29,429.39/40,619.00 = 19,358.82/x
  3. Step 3: Cross multiply
    29,429.39x = 40,619.00 × 19,358.82
  4. Step 4: Simplify right side
    29,429.39x = 786,335,957.98
  5. Step 5: Solve for x
    x = 786,335,957.98/29,429.39
  6. Step 6: Final answer
    x = 26,719.42

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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.