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Finding the Fourth Proportional to 82,983.60, 124,491.60 and 33,055.20

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Solution

The fourth proportional to 82,983.60, 124,491.60 and 33,055.20 is: 49,589.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,983.60 : 124,491.60 = 33,055.20 : x
  2. Step 2: Convert to fraction form
    82,983.60/124,491.60 = 33,055.20/x
  3. Step 3: Cross multiply
    82,983.60x = 124,491.60 × 33,055.20
  4. Step 4: Simplify right side
    82,983.60x = 4,115,094,736.32
  5. Step 5: Solve for x
    x = 4,115,094,736.32/82,983.60
  6. Step 6: Final answer
    x = 49,589.25

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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.