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Finding the Fourth Proportional to 5,916.60, 8,874.90 and 4,879.80

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Solution

The fourth proportional to 5,916.60, 8,874.90 and 4,879.80 is: 7,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,916.60 : 8,874.90 = 4,879.80 : x
  2. Step 2: Convert to fraction form
    5,916.60/8,874.90 = 4,879.80/x
  3. Step 3: Cross multiply
    5,916.60x = 8,874.90 × 4,879.80
  4. Step 4: Simplify right side
    5,916.60x = 43,307,737.02
  5. Step 5: Solve for x
    x = 43,307,737.02/5,916.60
  6. Step 6: Final answer
    x = 7,319.70

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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.