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Finding the Fourth Proportional to 52,396.88, 72,147.57 and 39,494.91

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Solution

The fourth proportional to 52,396.88, 72,147.57 and 39,494.91 is: 54,382.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,396.88 : 72,147.57 = 39,494.91 : x
  2. Step 2: Convert to fraction form
    52,396.88/72,147.57 = 39,494.91/x
  3. Step 3: Cross multiply
    52,396.88x = 72,147.57 × 39,494.91
  4. Step 4: Simplify right side
    52,396.88x = 2,849,461,783.87
  5. Step 5: Solve for x
    x = 2,849,461,783.87/52,396.88
  6. Step 6: Final answer
    x = 54,382.28

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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.