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Finding the Fourth Proportional to 52,361.80, 72,259.44 and 28,488.48

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Solution

The fourth proportional to 52,361.80, 72,259.44 and 28,488.48 is: 39,314.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,361.80 : 72,259.44 = 28,488.48 : x
  2. Step 2: Convert to fraction form
    52,361.80/72,259.44 = 28,488.48/x
  3. Step 3: Cross multiply
    52,361.80x = 72,259.44 × 28,488.48
  4. Step 4: Simplify right side
    52,361.80x = 2,058,561,611.25
  5. Step 5: Solve for x
    x = 2,058,561,611.25/52,361.80
  6. Step 6: Final answer
    x = 39,314.19

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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.