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Finding the Fourth Proportional to 64,320.72, 88,762.85 and 36,026.42

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Solution

The fourth proportional to 64,320.72, 88,762.85 and 36,026.42 is: 49,716.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,320.72 : 88,762.85 = 36,026.42 : x
  2. Step 2: Convert to fraction form
    64,320.72/88,762.85 = 36,026.42/x
  3. Step 3: Cross multiply
    64,320.72x = 88,762.85 × 36,026.42
  4. Step 4: Simplify right side
    64,320.72x = 3,197,807,090.55
  5. Step 5: Solve for x
    x = 3,197,807,090.55/64,320.72
  6. Step 6: Final answer
    x = 49,716.59

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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.