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Finding the Fourth Proportional to 63,185.40, 94,751.78 and 25,720.07

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Solution

The fourth proportional to 63,185.40, 94,751.78 and 25,720.07 is: 38,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,185.40 : 94,751.78 = 25,720.07 : x
  2. Step 2: Convert to fraction form
    63,185.40/94,751.78 = 25,720.07/x
  3. Step 3: Cross multiply
    63,185.40x = 94,751.78 × 25,720.07
  4. Step 4: Simplify right side
    63,185.40x = 2,437,021,811.87
  5. Step 5: Solve for x
    x = 2,437,021,811.87/63,185.40
  6. Step 6: Final answer
    x = 38,569.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.