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Finding the Fourth Proportional to 58,011.86, 86,845.50 and 31,636.64

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Solution

The fourth proportional to 58,011.86, 86,845.50 and 31,636.64 is: 47,361.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,011.86 : 86,845.50 = 31,636.64 : x
  2. Step 2: Convert to fraction form
    58,011.86/86,845.50 = 31,636.64/x
  3. Step 3: Cross multiply
    58,011.86x = 86,845.50 × 31,636.64
  4. Step 4: Simplify right side
    58,011.86x = 2,747,500,036.23
  5. Step 5: Solve for x
    x = 2,747,500,036.23/58,011.86
  6. Step 6: Final answer
    x = 47,361.00

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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.