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Finding the Fourth Proportional to 5,758.92, 8,639.46 and 2,835.72

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Solution

The fourth proportional to 5,758.92, 8,639.46 and 2,835.72 is: 4,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,758.92 : 8,639.46 = 2,835.72 : x
  2. Step 2: Convert to fraction form
    5,758.92/8,639.46 = 2,835.72/x
  3. Step 3: Cross multiply
    5,758.92x = 8,639.46 × 2,835.72
  4. Step 4: Simplify right side
    5,758.92x = 24,499,089.51
  5. Step 5: Solve for x
    x = 24,499,089.51/5,758.92
  6. Step 6: Final answer
    x = 4,254.11

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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.