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Finding the Fourth Proportional to 82,992.60, 124,461.81 and 26,819.51

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Solution

The fourth proportional to 82,992.60, 124,461.81 and 26,819.51 is: 40,220.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,992.60 : 124,461.81 = 26,819.51 : x
  2. Step 2: Convert to fraction form
    82,992.60/124,461.81 = 26,819.51/x
  3. Step 3: Cross multiply
    82,992.60x = 124,461.81 × 26,819.51
  4. Step 4: Simplify right side
    82,992.60x = 3,338,004,135.60
  5. Step 5: Solve for x
    x = 3,338,004,135.60/82,992.60
  6. Step 6: Final answer
    x = 40,220.50

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1.5x scale

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.