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Finding the Fourth Proportional to 52,351.78, 78,480.80 and 19,048.36

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Solution

The fourth proportional to 52,351.78, 78,480.80 and 19,048.36 is: 28,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,351.78 : 78,480.80 = 19,048.36 : x
  2. Step 2: Convert to fraction form
    52,351.78/78,480.80 = 19,048.36/x
  3. Step 3: Cross multiply
    52,351.78x = 78,480.80 × 19,048.36
  4. Step 4: Simplify right side
    52,351.78x = 1,494,930,531.49
  5. Step 5: Solve for x
    x = 1,494,930,531.49/52,351.78
  6. Step 6: Final answer
    x = 28,555.49

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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.