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Finding the Fourth Proportional to 66,551.60, 91,849.27 and 37,878.24

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Solution

The fourth proportional to 66,551.60, 91,849.27 and 37,878.24 is: 52,276.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,551.60 : 91,849.27 = 37,878.24 : x
  2. Step 2: Convert to fraction form
    66,551.60/91,849.27 = 37,878.24/x
  3. Step 3: Cross multiply
    66,551.60x = 91,849.27 × 37,878.24
  4. Step 4: Simplify right side
    66,551.60x = 3,479,088,692.88
  5. Step 5: Solve for x
    x = 3,479,088,692.88/66,551.60
  6. Step 6: Final answer
    x = 52,276.56

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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.