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Finding the Fourth Proportional to 4,874.63, 7,311.60 and 1,587.65

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Solution

The fourth proportional to 4,874.63, 7,311.60 and 1,587.65 is: 2,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.63 : 7,311.60 = 1,587.65 : x
  2. Step 2: Convert to fraction form
    4,874.63/7,311.60 = 1,587.65/x
  3. Step 3: Cross multiply
    4,874.63x = 7,311.60 × 1,587.65
  4. Step 4: Simplify right side
    4,874.63x = 11,608,225.18
  5. Step 5: Solve for x
    x = 11,608,225.18/4,874.63
  6. Step 6: Final answer
    x = 2,381.36

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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.