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Finding the Fourth Proportional to 29,064.66, 40,098.90 and 18,998.90

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Solution

The fourth proportional to 29,064.66, 40,098.90 and 18,998.90 is: 26,211.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,064.66 : 40,098.90 = 18,998.90 : x
  2. Step 2: Convert to fraction form
    29,064.66/40,098.90 = 18,998.90/x
  3. Step 3: Cross multiply
    29,064.66x = 40,098.90 × 18,998.90
  4. Step 4: Simplify right side
    29,064.66x = 761,834,991.21
  5. Step 5: Solve for x
    x = 761,834,991.21/29,064.66
  6. Step 6: Final answer
    x = 26,211.73

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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.