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Finding the Fourth Proportional to 4,994.56, 7,491.76 and 1,916.56

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Solution

The fourth proportional to 4,994.56, 7,491.76 and 1,916.56 is: 2,874.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,994.56 : 7,491.76 = 1,916.56 : x
  2. Step 2: Convert to fraction form
    4,994.56/7,491.76 = 1,916.56/x
  3. Step 3: Cross multiply
    4,994.56x = 7,491.76 × 1,916.56
  4. Step 4: Simplify right side
    4,994.56x = 14,358,407.55
  5. Step 5: Solve for x
    x = 14,358,407.55/4,994.56
  6. Step 6: Final answer
    x = 2,874.81

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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.