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Finding the Fourth Proportional to 55,479.84, 76,544.88 and 32,821.44

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Solution

The fourth proportional to 55,479.84, 76,544.88 and 32,821.44 is: 45,283.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,479.84 : 76,544.88 = 32,821.44 : x
  2. Step 2: Convert to fraction form
    55,479.84/76,544.88 = 32,821.44/x
  3. Step 3: Cross multiply
    55,479.84x = 76,544.88 × 32,821.44
  4. Step 4: Simplify right side
    55,479.84x = 2,512,313,186.23
  5. Step 5: Solve for x
    x = 2,512,313,186.23/55,479.84
  6. Step 6: Final answer
    x = 45,283.35

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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.