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Finding the Fourth Proportional to 58,491, 87,736.50 and 14,715

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Solution

The fourth proportional to 58,491, 87,736.50 and 14,715 is: 22,072.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,491 : 87,736.50 = 14,715 : x
  2. Step 2: Convert to fraction form
    58,491/87,736.50 = 14,715/x
  3. Step 3: Cross multiply
    58,491x = 87,736.50 × 14,715
  4. Step 4: Simplify right side
    58,491x = 1,291,042,597.50
  5. Step 5: Solve for x
    x = 1,291,042,597.50/58,491
  6. Step 6: Final answer
    x = 22,072.50

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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.