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Finding the Fourth Proportional to 52,553, 72,523.18 and 39,135.80

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Solution

The fourth proportional to 52,553, 72,523.18 and 39,135.80 is: 54,007.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,553 : 72,523.18 = 39,135.80 : x
  2. Step 2: Convert to fraction form
    52,553/72,523.18 = 39,135.80/x
  3. Step 3: Cross multiply
    52,553x = 72,523.18 × 39,135.80
  4. Step 4: Simplify right side
    52,553x = 2,838,252,667.84
  5. Step 5: Solve for x
    x = 2,838,252,667.84/52,553
  6. Step 6: Final answer
    x = 54,007.43

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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.