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Finding the Fourth Proportional to 65,366.40, 98,062.56 and 25,916.16

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Solution

The fourth proportional to 65,366.40, 98,062.56 and 25,916.16 is: 38,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,366.40 : 98,062.56 = 25,916.16 : x
  2. Step 2: Convert to fraction form
    65,366.40/98,062.56 = 25,916.16/x
  3. Step 3: Cross multiply
    65,366.40x = 98,062.56 × 25,916.16
  4. Step 4: Simplify right side
    65,366.40x = 2,541,404,994.97
  5. Step 5: Solve for x
    x = 2,541,404,994.97/65,366.40
  6. Step 6: Final answer
    x = 38,879.38

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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.