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Finding the Fourth Proportional to 8,730.72, 12,048.48 and 5,004

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Solution

The fourth proportional to 8,730.72, 12,048.48 and 5,004 is: 6,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730.72 : 12,048.48 = 5,004 : x
  2. Step 2: Convert to fraction form
    8,730.72/12,048.48 = 5,004/x
  3. Step 3: Cross multiply
    8,730.72x = 12,048.48 × 5,004
  4. Step 4: Simplify right side
    8,730.72x = 60,290,593.92
  5. Step 5: Solve for x
    x = 60,290,593.92/8,730.72
  6. Step 6: Final answer
    x = 6,905.57

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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.