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Finding the Fourth Proportional to 55,327.60, 82,991.40 and 48,415.60

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Solution

The fourth proportional to 55,327.60, 82,991.40 and 48,415.60 is: 72,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,327.60 : 82,991.40 = 48,415.60 : x
  2. Step 2: Convert to fraction form
    55,327.60/82,991.40 = 48,415.60/x
  3. Step 3: Cross multiply
    55,327.60x = 82,991.40 × 48,415.60
  4. Step 4: Simplify right side
    55,327.60x = 4,018,078,425.84
  5. Step 5: Solve for x
    x = 4,018,078,425.84/55,327.60
  6. Step 6: Final answer
    x = 72,623.40

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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.