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Finding the Fourth Proportional to 8,430.33, 12,648.20 and 4,048.10

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Solution

The fourth proportional to 8,430.33, 12,648.20 and 4,048.10 is: 6,073.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.33 : 12,648.20 = 4,048.10 : x
  2. Step 2: Convert to fraction form
    8,430.33/12,648.20 = 4,048.10/x
  3. Step 3: Cross multiply
    8,430.33x = 12,648.20 × 4,048.10
  4. Step 4: Simplify right side
    8,430.33x = 51,201,094.94
  5. Step 5: Solve for x
    x = 51,201,094.94/8,430.33
  6. Step 6: Final answer
    x = 6,073.44

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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.