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Finding the Fourth Proportional to 65,629.80, 98,444.70 and 62,404.20

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Solution

The fourth proportional to 65,629.80, 98,444.70 and 62,404.20 is: 93,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,629.80 : 98,444.70 = 62,404.20 : x
  2. Step 2: Convert to fraction form
    65,629.80/98,444.70 = 62,404.20/x
  3. Step 3: Cross multiply
    65,629.80x = 98,444.70 × 62,404.20
  4. Step 4: Simplify right side
    65,629.80x = 6,143,362,747.74
  5. Step 5: Solve for x
    x = 6,143,362,747.74/65,629.80
  6. Step 6: Final answer
    x = 93,606.30

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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.