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Finding the Fourth Proportional to 3,348.57, 4,621.03 and 1,856.51

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Solution

The fourth proportional to 3,348.57, 4,621.03 and 1,856.51 is: 2,561.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,348.57 : 4,621.03 = 1,856.51 : x
  2. Step 2: Convert to fraction form
    3,348.57/4,621.03 = 1,856.51/x
  3. Step 3: Cross multiply
    3,348.57x = 4,621.03 × 1,856.51
  4. Step 4: Simplify right side
    3,348.57x = 8,578,988.41
  5. Step 5: Solve for x
    x = 8,578,988.41/3,348.57
  6. Step 6: Final answer
    x = 2,561.99

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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.