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Finding the Fourth Proportional to 29,415.66, 40,593.87 and 15,986.91

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Solution

The fourth proportional to 29,415.66, 40,593.87 and 15,986.91 is: 22,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,415.66 : 40,593.87 = 15,986.91 : x
  2. Step 2: Convert to fraction form
    29,415.66/40,593.87 = 15,986.91/x
  3. Step 3: Cross multiply
    29,415.66x = 40,593.87 × 15,986.91
  4. Step 4: Simplify right side
    29,415.66x = 648,970,698.47
  5. Step 5: Solve for x
    x = 648,970,698.47/29,415.66
  6. Step 6: Final answer
    x = 22,062.08

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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.