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Finding the Fourth Proportional to 6,291.93, 8,667.85 and 4,399.98

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Solution

The fourth proportional to 6,291.93, 8,667.85 and 4,399.98 is: 6,061.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.93 : 8,667.85 = 4,399.98 : x
  2. Step 2: Convert to fraction form
    6,291.93/8,667.85 = 4,399.98/x
  3. Step 3: Cross multiply
    6,291.93x = 8,667.85 × 4,399.98
  4. Step 4: Simplify right side
    6,291.93x = 38,138,366.64
  5. Step 5: Solve for x
    x = 38,138,366.64/6,291.93
  6. Step 6: Final answer
    x = 6,061.47

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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.