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Finding the Fourth Proportional to 5,800.78, 8,004.95 and 3,148.18

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Solution

The fourth proportional to 5,800.78, 8,004.95 and 3,148.18 is: 4,344.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,800.78 : 8,004.95 = 3,148.18 : x
  2. Step 2: Convert to fraction form
    5,800.78/8,004.95 = 3,148.18/x
  3. Step 3: Cross multiply
    5,800.78x = 8,004.95 × 3,148.18
  4. Step 4: Simplify right side
    5,800.78x = 25,201,044.57
  5. Step 5: Solve for x
    x = 25,201,044.57/5,800.78
  6. Step 6: Final answer
    x = 4,344.43

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1.5x scale

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.