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Finding the Fourth Proportional to 8,301.70, 12,464.70 and 5,847.40

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Solution

The fourth proportional to 8,301.70, 12,464.70 and 5,847.40 is: 8,779.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,301.70 : 12,464.70 = 5,847.40 : x
  2. Step 2: Convert to fraction form
    8,301.70/12,464.70 = 5,847.40/x
  3. Step 3: Cross multiply
    8,301.70x = 12,464.70 × 5,847.40
  4. Step 4: Simplify right side
    8,301.70x = 72,886,086.78
  5. Step 5: Solve for x
    x = 72,886,086.78/8,301.70
  6. Step 6: Final answer
    x = 8,779.66

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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.