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Finding the Fourth Proportional to 54,309.40, 74,946.83 and 33,088.68

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Solution

The fourth proportional to 54,309.40, 74,946.83 and 33,088.68 is: 45,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,309.40 : 74,946.83 = 33,088.68 : x
  2. Step 2: Convert to fraction form
    54,309.40/74,946.83 = 33,088.68/x
  3. Step 3: Cross multiply
    54,309.40x = 74,946.83 × 33,088.68
  4. Step 4: Simplify right side
    54,309.40x = 2,479,891,509.44
  5. Step 5: Solve for x
    x = 2,479,891,509.44/54,309.40
  6. Step 6: Final answer
    x = 45,662.29

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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.