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Finding the Fourth Proportional to 62,657.64, 93,990.78 and 25,218

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Solution

The fourth proportional to 62,657.64, 93,990.78 and 25,218 is: 37,828.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,657.64 : 93,990.78 = 25,218 : x
  2. Step 2: Convert to fraction form
    62,657.64/93,990.78 = 25,218/x
  3. Step 3: Cross multiply
    62,657.64x = 93,990.78 × 25,218
  4. Step 4: Simplify right side
    62,657.64x = 2,370,259,490.04
  5. Step 5: Solve for x
    x = 2,370,259,490.04/62,657.64
  6. Step 6: Final answer
    x = 37,828.74

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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.