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Finding the Fourth Proportional to 65,257.48, 90,013.12 and 44,829.80

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Solution

The fourth proportional to 65,257.48, 90,013.12 and 44,829.80 is: 61,836.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,257.48 : 90,013.12 = 44,829.80 : x
  2. Step 2: Convert to fraction form
    65,257.48/90,013.12 = 44,829.80/x
  3. Step 3: Cross multiply
    65,257.48x = 90,013.12 × 44,829.80
  4. Step 4: Simplify right side
    65,257.48x = 4,035,270,166.98
  5. Step 5: Solve for x
    x = 4,035,270,166.98/65,257.48
  6. Step 6: Final answer
    x = 61,836.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.