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Finding the Fourth Proportional to 58,380, 80,578.80 and 33,244.32

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Solution

The fourth proportional to 58,380, 80,578.80 and 33,244.32 is: 45,885.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,380 : 80,578.80 = 33,244.32 : x
  2. Step 2: Convert to fraction form
    58,380/80,578.80 = 33,244.32/x
  3. Step 3: Cross multiply
    58,380x = 80,578.80 × 33,244.32
  4. Step 4: Simplify right side
    58,380x = 2,678,787,412.42
  5. Step 5: Solve for x
    x = 2,678,787,412.42/58,380
  6. Step 6: Final answer
    x = 45,885.36

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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.