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Finding the Fourth Proportional to 6,598.76, 9,887.34 and 3,993.80

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Solution

The fourth proportional to 6,598.76, 9,887.34 and 3,993.80 is: 5,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,598.76 : 9,887.34 = 3,993.80 : x
  2. Step 2: Convert to fraction form
    6,598.76/9,887.34 = 3,993.80/x
  3. Step 3: Cross multiply
    6,598.76x = 9,887.34 × 3,993.80
  4. Step 4: Simplify right side
    6,598.76x = 39,488,058.49
  5. Step 5: Solve for x
    x = 39,488,058.49/6,598.76
  6. Step 6: Final answer
    x = 5,984.16

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1.5x scale

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.