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Finding the Fourth Proportional to 29,350.48, 40,503.44 and 15,921.44

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Solution

The fourth proportional to 29,350.48, 40,503.44 and 15,921.44 is: 21,971.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,350.48 : 40,503.44 = 15,921.44 : x
  2. Step 2: Convert to fraction form
    29,350.48/40,503.44 = 15,921.44/x
  3. Step 3: Cross multiply
    29,350.48x = 40,503.44 × 15,921.44
  4. Step 4: Simplify right side
    29,350.48x = 644,873,089.75
  5. Step 5: Solve for x
    x = 644,873,089.75/29,350.48
  6. Step 6: Final answer
    x = 21,971.47

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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.