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Finding the Fourth Proportional to 51,600.40, 77,400.60 and 25,356.40

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Solution

The fourth proportional to 51,600.40, 77,400.60 and 25,356.40 is: 38,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,600.40 : 77,400.60 = 25,356.40 : x
  2. Step 2: Convert to fraction form
    51,600.40/77,400.60 = 25,356.40/x
  3. Step 3: Cross multiply
    51,600.40x = 77,400.60 × 25,356.40
  4. Step 4: Simplify right side
    51,600.40x = 1,962,600,573.84
  5. Step 5: Solve for x
    x = 1,962,600,573.84/51,600.40
  6. Step 6: Final answer
    x = 38,034.60

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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.