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Finding the Fourth Proportional to 62,852.80, 86,712.12 and 35,980.82

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Solution

The fourth proportional to 62,852.80, 86,712.12 and 35,980.82 is: 49,639.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,852.80 : 86,712.12 = 35,980.82 : x
  2. Step 2: Convert to fraction form
    62,852.80/86,712.12 = 35,980.82/x
  3. Step 3: Cross multiply
    62,852.80x = 86,712.12 × 35,980.82
  4. Step 4: Simplify right side
    62,852.80x = 3,119,973,181.54
  5. Step 5: Solve for x
    x = 3,119,973,181.54/62,852.80
  6. Step 6: Final answer
    x = 49,639.37

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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.