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Finding the Fourth Proportional to 36,473.60, 54,655.72 and 28,141.16

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Solution

The fourth proportional to 36,473.60, 54,655.72 and 28,141.16 is: 42,169.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,473.60 : 54,655.72 = 28,141.16 : x
  2. Step 2: Convert to fraction form
    36,473.60/54,655.72 = 28,141.16/x
  3. Step 3: Cross multiply
    36,473.60x = 54,655.72 × 28,141.16
  4. Step 4: Simplify right side
    36,473.60x = 1,538,075,361.44
  5. Step 5: Solve for x
    x = 1,538,075,361.44/36,473.60
  6. Step 6: Final answer
    x = 42,169.55

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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.