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Finding the Fourth Proportional to 57,652.80, 86,527.80 and 28,095.90

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Solution

The fourth proportional to 57,652.80, 86,527.80 and 28,095.90 is: 42,167.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,652.80 : 86,527.80 = 28,095.90 : x
  2. Step 2: Convert to fraction form
    57,652.80/86,527.80 = 28,095.90/x
  3. Step 3: Cross multiply
    57,652.80x = 86,527.80 × 28,095.90
  4. Step 4: Simplify right side
    57,652.80x = 2,431,076,416.02
  5. Step 5: Solve for x
    x = 2,431,076,416.02/57,652.80
  6. Step 6: Final answer
    x = 42,167.53

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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.