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Finding the Fourth Proportional to 45,189.78, 62,361.84 and 25,317.78

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Solution

The fourth proportional to 45,189.78, 62,361.84 and 25,317.78 is: 34,938.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,189.78 : 62,361.84 = 25,317.78 : x
  2. Step 2: Convert to fraction form
    45,189.78/62,361.84 = 25,317.78/x
  3. Step 3: Cross multiply
    45,189.78x = 62,361.84 × 25,317.78
  4. Step 4: Simplify right side
    45,189.78x = 1,578,863,345.52
  5. Step 5: Solve for x
    x = 1,578,863,345.52/45,189.78
  6. Step 6: Final answer
    x = 34,938.50

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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.