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Finding the Fourth Proportional to 65,352.80, 97,786.20 and 47,856.80

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Solution

The fourth proportional to 65,352.80, 97,786.20 and 47,856.80 is: 71,607.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,352.80 : 97,786.20 = 47,856.80 : x
  2. Step 2: Convert to fraction form
    65,352.80/97,786.20 = 47,856.80/x
  3. Step 3: Cross multiply
    65,352.80x = 97,786.20 × 47,856.80
  4. Step 4: Simplify right side
    65,352.80x = 4,679,734,616.16
  5. Step 5: Solve for x
    x = 4,679,734,616.16/65,352.80
  6. Step 6: Final answer
    x = 71,607.26

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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.