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Finding the Fourth Proportional to 29,257.94, 40,375.95 and 15,829.18

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Solution

The fourth proportional to 29,257.94, 40,375.95 and 15,829.18 is: 21,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,257.94 : 40,375.95 = 15,829.18 : x
  2. Step 2: Convert to fraction form
    29,257.94/40,375.95 = 15,829.18/x
  3. Step 3: Cross multiply
    29,257.94x = 40,375.95 × 15,829.18
  4. Step 4: Simplify right side
    29,257.94x = 639,118,270.26
  5. Step 5: Solve for x
    x = 639,118,270.26/29,257.94
  6. Step 6: Final answer
    x = 21,844.27

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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.