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Finding the Fourth Proportional to 62,676.96, 86,508.72 and 40,282.08

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Solution

The fourth proportional to 62,676.96, 86,508.72 and 40,282.08 is: 55,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,676.96 : 86,508.72 = 40,282.08 : x
  2. Step 2: Convert to fraction form
    62,676.96/86,508.72 = 40,282.08/x
  3. Step 3: Cross multiply
    62,676.96x = 86,508.72 × 40,282.08
  4. Step 4: Simplify right side
    62,676.96x = 3,484,751,179.74
  5. Step 5: Solve for x
    x = 3,484,751,179.74/62,676.96
  6. Step 6: Final answer
    x = 55,598.60

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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.