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Finding the Fourth Proportional to 65,490.50, 98,243.99 and 25,510.39

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Solution

The fourth proportional to 65,490.50, 98,243.99 and 25,510.39 is: 38,268.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,490.50 : 98,243.99 = 25,510.39 : x
  2. Step 2: Convert to fraction form
    65,490.50/98,243.99 = 25,510.39/x
  3. Step 3: Cross multiply
    65,490.50x = 98,243.99 × 25,510.39
  4. Step 4: Simplify right side
    65,490.50x = 2,506,242,500.06
  5. Step 5: Solve for x
    x = 2,506,242,500.06/65,490.50
  6. Step 6: Final answer
    x = 38,268.79

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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.