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Finding the Fourth Proportional to 6,928.12, 9,560.82 and 4,274.92

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Solution

The fourth proportional to 6,928.12, 9,560.82 and 4,274.92 is: 5,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.12 : 9,560.82 = 4,274.92 : x
  2. Step 2: Convert to fraction form
    6,928.12/9,560.82 = 4,274.92/x
  3. Step 3: Cross multiply
    6,928.12x = 9,560.82 × 4,274.92
  4. Step 4: Simplify right side
    6,928.12x = 40,871,740.63
  5. Step 5: Solve for x
    x = 40,871,740.63/6,928.12
  6. Step 6: Final answer
    x = 5,899.40

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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.