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Finding the Fourth Proportional to 29,418, 40,568.90 and 19,354.98

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Solution

The fourth proportional to 29,418, 40,568.90 and 19,354.98 is: 26,691.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,418 : 40,568.90 = 19,354.98 : x
  2. Step 2: Convert to fraction form
    29,418/40,568.90 = 19,354.98/x
  3. Step 3: Cross multiply
    29,418x = 40,568.90 × 19,354.98
  4. Step 4: Simplify right side
    29,418x = 785,210,248.12
  5. Step 5: Solve for x
    x = 785,210,248.12/29,418
  6. Step 6: Final answer
    x = 26,691.49

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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.