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Finding the Fourth Proportional to 57,855.02, 86,835.98 and 35,711.64

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Solution

The fourth proportional to 57,855.02, 86,835.98 and 35,711.64 is: 53,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,855.02 : 86,835.98 = 35,711.64 : x
  2. Step 2: Convert to fraction form
    57,855.02/86,835.98 = 35,711.64/x
  3. Step 3: Cross multiply
    57,855.02x = 86,835.98 × 35,711.64
  4. Step 4: Simplify right side
    57,855.02x = 3,101,055,256.81
  5. Step 5: Solve for x
    x = 3,101,055,256.81/57,855.02
  6. Step 6: Final answer
    x = 53,600.45

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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.