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Finding the Fourth Proportional to 3,374.12, 5,063.64 and 1,916.12

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Solution

The fourth proportional to 3,374.12, 5,063.64 and 1,916.12 is: 2,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,374.12 : 5,063.64 = 1,916.12 : x
  2. Step 2: Convert to fraction form
    3,374.12/5,063.64 = 1,916.12/x
  3. Step 3: Cross multiply
    3,374.12x = 5,063.64 × 1,916.12
  4. Step 4: Simplify right side
    3,374.12x = 9,702,541.88
  5. Step 5: Solve for x
    x = 9,702,541.88/3,374.12
  6. Step 6: Final answer
    x = 2,875.58

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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.