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Finding the Fourth Proportional to 62,487.40, 86,237.72 and 35,638.32

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Solution

The fourth proportional to 62,487.40, 86,237.72 and 35,638.32 is: 49,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,487.40 : 86,237.72 = 35,638.32 : x
  2. Step 2: Convert to fraction form
    62,487.40/86,237.72 = 35,638.32/x
  3. Step 3: Cross multiply
    62,487.40x = 86,237.72 × 35,638.32
  4. Step 4: Simplify right side
    62,487.40x = 3,073,367,461.43
  5. Step 5: Solve for x
    x = 3,073,367,461.43/62,487.40
  6. Step 6: Final answer
    x = 49,183.79

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1.5x scale

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.