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Finding the Fourth Proportional to 22,055.40, 33,083.04 and 5,639.40

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Solution

The fourth proportional to 22,055.40, 33,083.04 and 5,639.40 is: 8,459.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,055.40 : 33,083.04 = 5,639.40 : x
  2. Step 2: Convert to fraction form
    22,055.40/33,083.04 = 5,639.40/x
  3. Step 3: Cross multiply
    22,055.40x = 33,083.04 × 5,639.40
  4. Step 4: Simplify right side
    22,055.40x = 186,568,495.78
  5. Step 5: Solve for x
    x = 186,568,495.78/22,055.40
  6. Step 6: Final answer
    x = 8,459.08

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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.