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Finding the Fourth Proportional to 3,193.95, 4,407.85 and 1,935.12

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Solution

The fourth proportional to 3,193.95, 4,407.85 and 1,935.12 is: 2,670.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.95 : 4,407.85 = 1,935.12 : x
  2. Step 2: Convert to fraction form
    3,193.95/4,407.85 = 1,935.12/x
  3. Step 3: Cross multiply
    3,193.95x = 4,407.85 × 1,935.12
  4. Step 4: Simplify right side
    3,193.95x = 8,529,737.64
  5. Step 5: Solve for x
    x = 8,529,737.64/3,193.95
  6. Step 6: Final answer
    x = 2,670.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.