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Finding the Fourth Proportional to 29,507.16, 40,721.90 and 18,026.99

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Solution

The fourth proportional to 29,507.16, 40,721.90 and 18,026.99 is: 24,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,507.16 : 40,721.90 = 18,026.99 : x
  2. Step 2: Convert to fraction form
    29,507.16/40,721.90 = 18,026.99/x
  3. Step 3: Cross multiply
    29,507.16x = 40,721.90 × 18,026.99
  4. Step 4: Simplify right side
    29,507.16x = 734,092,990.34
  5. Step 5: Solve for x
    x = 734,092,990.34/29,507.16
  6. Step 6: Final answer
    x = 24,878.47

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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.