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Finding the Fourth Proportional to 19,689.01, 29,408.01 and 17,812.02

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Solution

The fourth proportional to 19,689.01, 29,408.01 and 17,812.02 is: 26,604.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.01 : 29,408.01 = 17,812.02 : x
  2. Step 2: Convert to fraction form
    19,689.01/29,408.01 = 17,812.02/x
  3. Step 3: Cross multiply
    19,689.01x = 29,408.01 × 17,812.02
  4. Step 4: Simplify right side
    19,689.01x = 523,816,062.28
  5. Step 5: Solve for x
    x = 523,816,062.28/19,689.01
  6. Step 6: Final answer
    x = 26,604.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.