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Finding the Fourth Proportional to 3,347.87, 4,620.17 and 1,855.76

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Solution

The fourth proportional to 3,347.87, 4,620.17 and 1,855.76 is: 2,561.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.87 : 4,620.17 = 1,855.76 : x
  2. Step 2: Convert to fraction form
    3,347.87/4,620.17 = 1,855.76/x
  3. Step 3: Cross multiply
    3,347.87x = 4,620.17 × 1,855.76
  4. Step 4: Simplify right side
    3,347.87x = 8,573,908.22
  5. Step 5: Solve for x
    x = 8,573,908.22/3,347.87
  6. Step 6: Final answer
    x = 2,561.01

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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.