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Finding the Fourth Proportional to 37,688.52, 56,536.64 and 9,986.52

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Solution

The fourth proportional to 37,688.52, 56,536.64 and 9,986.52 is: 14,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,688.52 : 56,536.64 = 9,986.52 : x
  2. Step 2: Convert to fraction form
    37,688.52/56,536.64 = 9,986.52/x
  3. Step 3: Cross multiply
    37,688.52x = 56,536.64 × 9,986.52
  4. Step 4: Simplify right side
    37,688.52x = 564,604,286.09
  5. Step 5: Solve for x
    x = 564,604,286.09/37,688.52
  6. Step 6: Final answer
    x = 14,980.80

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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.