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Finding the Fourth Proportional to 54,989.63, 75,885.89 and 29,839.13

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Solution

The fourth proportional to 54,989.63, 75,885.89 and 29,839.13 is: 41,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,989.63 : 75,885.89 = 29,839.13 : x
  2. Step 2: Convert to fraction form
    54,989.63/75,885.89 = 29,839.13/x
  3. Step 3: Cross multiply
    54,989.63x = 75,885.89 × 29,839.13
  4. Step 4: Simplify right side
    54,989.63x = 2,264,368,408.25
  5. Step 5: Solve for x
    x = 2,264,368,408.25/54,989.63
  6. Step 6: Final answer
    x = 41,178.10

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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.