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Finding the Fourth Proportional to 58,497, 87,745.50 and 14,721

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Solution

The fourth proportional to 58,497, 87,745.50 and 14,721 is: 22,081.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,497 : 87,745.50 = 14,721 : x
  2. Step 2: Convert to fraction form
    58,497/87,745.50 = 14,721/x
  3. Step 3: Cross multiply
    58,497x = 87,745.50 × 14,721
  4. Step 4: Simplify right side
    58,497x = 1,291,701,505.50
  5. Step 5: Solve for x
    x = 1,291,701,505.50/58,497
  6. Step 6: Final answer
    x = 22,081.50

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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.