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Finding the Fourth Proportional to 65,506.40, 98,272.40 and 26,056.80

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Solution

The fourth proportional to 65,506.40, 98,272.40 and 26,056.80 is: 39,090.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,506.40 : 98,272.40 = 26,056.80 : x
  2. Step 2: Convert to fraction form
    65,506.40/98,272.40 = 26,056.80/x
  3. Step 3: Cross multiply
    65,506.40x = 98,272.40 × 26,056.80
  4. Step 4: Simplify right side
    65,506.40x = 2,560,664,272.32
  5. Step 5: Solve for x
    x = 2,560,664,272.32/65,506.40
  6. Step 6: Final answer
    x = 39,090.29

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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.