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Finding the Fourth Proportional to 54,810.88, 75,639.22 and 29,660.38

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Solution

The fourth proportional to 54,810.88, 75,639.22 and 29,660.38 is: 40,931.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,810.88 : 75,639.22 = 29,660.38 : x
  2. Step 2: Convert to fraction form
    54,810.88/75,639.22 = 29,660.38/x
  3. Step 3: Cross multiply
    54,810.88x = 75,639.22 × 29,660.38
  4. Step 4: Simplify right side
    54,810.88x = 2,243,488,008.10
  5. Step 5: Solve for x
    x = 2,243,488,008.10/54,810.88
  6. Step 6: Final answer
    x = 40,931.44

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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.