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Finding the Fourth Proportional to 29,167.76, 40,230.02 and 21,997.98

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Solution

The fourth proportional to 29,167.76, 40,230.02 and 21,997.98 is: 30,341.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,167.76 : 40,230.02 = 21,997.98 : x
  2. Step 2: Convert to fraction form
    29,167.76/40,230.02 = 21,997.98/x
  3. Step 3: Cross multiply
    29,167.76x = 40,230.02 × 21,997.98
  4. Step 4: Simplify right side
    29,167.76x = 884,979,175.36
  5. Step 5: Solve for x
    x = 884,979,175.36/29,167.76
  6. Step 6: Final answer
    x = 30,341.01

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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.