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Finding the Fourth Proportional to 29,458.98, 40,665.24 and 20,033.28

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Solution

The fourth proportional to 29,458.98, 40,665.24 and 20,033.28 is: 27,653.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,458.98 : 40,665.24 = 20,033.28 : x
  2. Step 2: Convert to fraction form
    29,458.98/40,665.24 = 20,033.28/x
  3. Step 3: Cross multiply
    29,458.98x = 40,665.24 × 20,033.28
  4. Step 4: Simplify right side
    29,458.98x = 814,658,139.19
  5. Step 5: Solve for x
    x = 814,658,139.19/29,458.98
  6. Step 6: Final answer
    x = 27,653.98

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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.