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Finding the Fourth Proportional to 82,993.60, 124,463.31 and 26,820.51

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Solution

The fourth proportional to 82,993.60, 124,463.31 and 26,820.51 is: 40,222.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,993.60 : 124,463.31 = 26,820.51 : x
  2. Step 2: Convert to fraction form
    82,993.60/124,463.31 = 26,820.51/x
  3. Step 3: Cross multiply
    82,993.60x = 124,463.31 × 26,820.51
  4. Step 4: Simplify right side
    82,993.60x = 3,338,169,450.49
  5. Step 5: Solve for x
    x = 3,338,169,450.49/82,993.60
  6. Step 6: Final answer
    x = 40,222.01

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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.