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Finding the Fourth Proportional to 55,389.32, 83,083.97 and 43,880.84

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Solution

The fourth proportional to 55,389.32, 83,083.97 and 43,880.84 is: 65,821.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,389.32 : 83,083.97 = 43,880.84 : x
  2. Step 2: Convert to fraction form
    55,389.32/83,083.97 = 43,880.84/x
  3. Step 3: Cross multiply
    55,389.32x = 83,083.97 × 43,880.84
  4. Step 4: Simplify right side
    55,389.32x = 3,645,794,088.42
  5. Step 5: Solve for x
    x = 3,645,794,088.42/55,389.32
  6. Step 6: Final answer
    x = 65,821.25

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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.