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Finding the Fourth Proportional to 54,569.88, 75,305.94 and 30,696.74

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Solution

The fourth proportional to 54,569.88, 75,305.94 and 30,696.74 is: 42,361.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,569.88 : 75,305.94 = 30,696.74 : x
  2. Step 2: Convert to fraction form
    54,569.88/75,305.94 = 30,696.74/x
  3. Step 3: Cross multiply
    54,569.88x = 75,305.94 × 30,696.74
  4. Step 4: Simplify right side
    54,569.88x = 2,311,646,484.11
  5. Step 5: Solve for x
    x = 2,311,646,484.11/54,569.88
  6. Step 6: Final answer
    x = 42,361.22

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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.