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Finding the Fourth Proportional to 54,990.96, 75,888.90 and 29,840.40

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Solution

The fourth proportional to 54,990.96, 75,888.90 and 29,840.40 is: 41,180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,990.96 : 75,888.90 = 29,840.40 : x
  2. Step 2: Convert to fraction form
    54,990.96/75,888.90 = 29,840.40/x
  3. Step 3: Cross multiply
    54,990.96x = 75,888.90 × 29,840.40
  4. Step 4: Simplify right side
    54,990.96x = 2,264,555,131.56
  5. Step 5: Solve for x
    x = 2,264,555,131.56/54,990.96
  6. Step 6: Final answer
    x = 41,180.50

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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.