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Finding the Fourth Proportional to 54,868.75, 75,718.89 and 29,718.25

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Solution

The fourth proportional to 54,868.75, 75,718.89 and 29,718.25 is: 41,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,868.75 : 75,718.89 = 29,718.25 : x
  2. Step 2: Convert to fraction form
    54,868.75/75,718.89 = 29,718.25/x
  3. Step 3: Cross multiply
    54,868.75x = 75,718.89 × 29,718.25
  4. Step 4: Simplify right side
    54,868.75x = 2,250,232,902.74
  5. Step 5: Solve for x
    x = 2,250,232,902.74/54,868.75
  6. Step 6: Final answer
    x = 41,011.19

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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.